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WILLIAM THOMAS PECORA
February 1, 1913_J~ly 19, 1972
BY CHARLES A. ANDERSON
WILLIAM THOMAS PECORA was a stimulating and enthusiastic
geologist, known as "Bill" to countless friends. He had
an exciting career with the U.S. Geological Survey that culmi-
nated in his appointment by President Richard Nixon on April
20, 1971, to serve as Undersecretary of the Department of the
Interior. In June of 1972, Pecora was hospitalized because of
diverticulitis and was unable to survive postoperative complica-
tions leading to his death on July 19 of that year. Interior Secre-
tary Rogers C. B. Morton paid high tribute to Bill Pecora, stat-
ing, "Our department—and the nation—has lost a singularly
talented and energetic scientist and administrator. Few men
possess the leadership qualities which Dr. Pecora showed in his
quest for balance and harmony in resource development and
conservation. Dr. Pecora understood conservation in the true
sense. As a scientist, he recognized that Nature's forces are
neither angry nor benign; they operate on laws and principles of
matter, motion, physics, and chemistry. He felt strongly that
man must not seek to subdue these forces, but understand them,
work with them, and live in harmony with them." ~
Bill Pecora was born in Belleville, New Jersey, the son of
Cono and Anna (Amabile) Pecora. Both parents were born in
southern Italy in the village of San Arsenio, near Paestrum, an
~ Eulogy at St. Patrick's Episcopal Church, July 2l, 1972.
371
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372
BIOGRAPHICAL ME M OIRS
early Greek settlement, and the recorded Pecora lineage dates
from about 1600 A.D. His parents were married in Newark, New
Jersey, and lived in Belleville for a time until they moved back
to Newark, where they lived until their deaths. There were ten
children in Bill's family—four boys and six girls. Bill was num-
ber nine, and in his boyhood he bras the unhappy "water boy,"
assigned to filling the twelve water glasses for the family. The
Pecoras were an unusually devoted and close group, and family
loyalty seemed to increase with the passage of time. Christmas
was a "must" gathering, and one year Bill traveled from South
America for thirty-six hours without sleep in order to be pres-
ent for the Yuletide celebration.
Bill's two older brothers, Louis and Charles, and his eldest
sister, lean, carried on the family business of wholesale imports.
His brother Sam, a physician, loved to discuss poetry and
science with Bill. Surviving, children of the Pecora family are
five sisters: Mrs. Ellis Blackman, Mrs. Vincent l. Casale, and
Mrs. Frank Immersi of Newark; Firs. Gerard A. Riccardi, Juno,
Florida; and Mrs. James J. Vasselli, Tequesta, Florida.
Bill attended the Abington Elementary School and Bar-
ringer High School in Newarl;, and was graduated from the
latter in 1929. He alas very active in extracurricular affairs in
high school, serving as editor of the monthly school paper,
"Acropolis," and of the yearbook, "Taps." He contributed an
editorial to "Taps" that summarized the four years of student life
at Barringer High School, with appreciable emphasis on military
jargon in keeping with the title of the yearbook. Baseball,
soccer, and fencing used up some of his energy, and he partici-
pated in the HiY Club, Latin Club, Italian Club, Thalians
(acting), Forum (debating), and Science Club. In his spare
time, he wrote the words for the song of the Class of 1929.
Louise I. Capen (civics and history), Roger B. Saylor (math
and science), and V. L. Sibilia (Italian) were teachers who took
much personal interest in Bill and entertained him at their
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WILLIAM THOMAS PECORA
373
homes. As might be expected, he was valedictorian of his grad-
uating class.
In 1929, Bill was awarded a Charles H. K. Halsey Scholar-
ship that provided funds for a four-year scholarship of $1000
annually, to be used for tuition and living expenses at Prince-
ton University. Three scholarships were awarded that year to
candidates who were residents of New Jersey and had received
their preparatory education at one of the public high schools
in that state and who, in the opinion of university authorities,
would be unable to obtain an education at Princeton without
this financial assistance. An additional requirement was that
each winner be of a different religious faith—one Protestant, one
Jewish, and one Roman Catholic. Bill Pecora was the Roman
Catholic selected.
At Princeton, Bill majored in geology and geological engi-
neering, with an emphasis on hard rocks. He received the
B.S.E. degree in 1933, and was graduated with honors. His
senior thesis was, "The problem of the Susquehanna Complex
with special attention to specific gravity variations," with A. F.
Buddington, H. H. Hess, and Edward Sampson as advisors.
During his undergraduate days, he found time to serve on the
editorial board of the campus humor magazine, "Tiger," and
was associate editor of two other campus publications, "Nassau
Herald" and "Bric-a-Brac." He was a member of the Pistol
Club and Rifle Club and was active in varsity fencing, serving
as captain of the team in his senior year when he was Inter-
collegiate Fencing Champion. After graduation, he stayed on
for two years at Princeton as a tutor in geology. In the summer
of 1934, he was a field assistant to Erling Dorf, who was work-
ing in Montana on Paleozoic stratigraphy and on the Beartooth
Butte Formation, as well as collecting ostracoderms and fossil
plants.
Scholarship aid made it possible for Bill Pecora to start
graduate studies at Harvard in 1935, where he concentrated
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374
BIOGRAPHICAL MEMOIRS
largely in optical mineralogy and petrography under Esper
S. Larsen, Jr. Bill became an assistant to Professor Larsen,
which was considered an honor by the graduate students be-
cause of the legend that Esper Larsen's absentmindedness re-
quired an assistant who was very bright. Later Bill became an
instructor in petrography. He was always regarded as one of
"the Professor's boys," and Larsen encouraged Bill to select a
thesis area in the Bearpaw Mountains, where he had a group
of students working on igneous rocks. Bill received a grant
from the Holden Fund to finance his fieldwork in 1937-1939
in the western fringe of the Bearpaw Mountains.
For his doctoral thesis, Bill made a petrologic study of the
Boxelder laccolith and concluded that it differed structurally
and petrologically from all the described laccoliths in the
Highwood Mountains and that the syenitic rocks differentiated
from shonkinite after the emplacement of shonkinitic magma
into the laccolithic horizon. The progression of differentiation
was from pla~,ioclase shonkinite to plagioclase syenite to sani-
dine syenite. In addition, Bill studied the unusual nepheline-
bearing pegmatites in the Rocky Boy stock, located about
twenty miles southeast of the Boxelder laccolith, concluding,
that these rocks resemble the unusual pegmatites of the Kola
Peninsula in Russia. He also described drusy vugs in a monzo-
nite dike that contained albite tablets associated with prehnite
and smaller masses of calcite. Bill was awarded the Ph.D. degree
by Harvard in 1940.
During the summer of 1936, Bill was in Germany as a mem-
ber of the United States Olympic fencing team, and during his
later student days at Harvard he continued this activity. In one
demonstration, Bill and his partner fenced on roller skates. He
was very gregarious and had another social life completely out-
side the Harvard geology department. To the envy of his
friends, Bill liked to brag about the great Italian meals he had
enjoyed in South Boston.
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WILLIAM THOMAS PECORA
375
Foster Hewett, Chief of the Metals Section of the U.S. Geo-
logical Survey, was a frequent visitor to the geology department
at Harvard before the outbreak of World War II, and because
of the glowing recommendations from the department, he hired
Bill Pecora to participate in the Strategic Minerals Program.
Bill's first assignment in 1940 was the study of nickeliferous de-
posits in the western states; the assignment was later expanded
to include similar deposits in Brazil. Bill found that the richer
deposits of nickel were the result of long weathering of pyroxe-
nite or peridotite during a complex physiographic history and
that serpentinite was not a favorable rock for the residual ac-
cumulation of nickel. Garnierite in the nickel-silicate deposit
near Riddle, Oregon, had three modes of occurrence, reflecting
an orderly variation in color, specific gravity, and nickel con-
tent, which serve as useful guides for economic geologists.
Mica was an important strategic mineral during World
War II, and in 1943 Bill was assigned to southeastern Brazil to
participate in and direct investigations of the mica-bearing
pegmatites. He and his associates were able to unravel the
complexities of the structural controls, which led to the dis-
covery of important mica deposits needed for the war program.
Bulletin reports were published by the Brazilian government
and by the U.S. Geological Survey. In addition, Bill spent
some time in Colombia, Venezuela, and Brazil investigating
quartz crystals needed for radio oscillators during World War II.
Bill had a sharp eye and an affection for minerals, and the
pegmatites in Brazil were excellent collecting sites for choice
specimens. In 1946 he returned to Washington, D.C., with a
number of semiprecious gems that he enjoyed displaying to his
numerous friends. Phosphate minerals are common in the
Brazilian pegmatites, and Bill collaborated with several of his
colleagues in mineralogical studies of his specimens that re-
sulted in a series of papers describing new minerals. Later in
Montana, he found two new carbonate minerals, which he
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376
BIOGRAPHICAL MEMOIRS
named after his friends, Wilbur Burbank and Frank Calkins.
Bill described whewellite, a calcium oxalate monohydrate from
Montana, the mineral's first known locality in North America.
As a result of considerable laboratory work, Bill and his col-
leagues described nine new mineral species from his mineral
collections.
In 1949, he started his large-scale geologic mapping pro-
gram of eight fifteen-minute quadrangles in the Bearpaw Moun-
tains in Montana. He became a very effective recruiting officer
at universities and colleges and selected many promising stu-
dents as field assistants. Ten of these are named as co-authors
on the published maps; seven remained with the U.S. Geo-
logical Survey and nosier have responsible research assignments.
The first four geologic maps were published in 1957 on a
planimetric base as Miscellaneous Geologic Investigation Maps
and the other four were published in bulletins in multicolor
on topographic base maps, starting, in 1960 and ending in 1963.
Bill was very proud of the accomplishments of this mapping
project of the Cenozoic alkalic igneous rocks.
In 1956, Bill Pecora published an outstanding review paper
on carbonatites, which are essentially carbonate-silicate rocks
containing a great variety of minerals. He concluded that the
carbonatites were deposited by solutions ranging widely in
temperature, pressure, and concentrations that were derived
from alkalic magmas during silicate crystallization. He also
concluded that a carbonate magma in the normal sense is less
likely to exist than carbonate-rich solutions, which at elevated
temperatures and pressures can contain higher concentrations
of dissolved ingredients than are normally in hydrothermal
solutions. At many localities, the carbonatites occur as veinlike
or dikelike bodies or as cores in volcanic plugs of alkalic rocks.
Demonstrating his awareness of the importance of mineral re-
sources, he emphasized that the carbonatites and related alkalic
rocks contain an impressive reserve of rare commodities—nio-
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WILLIAM THOMAS PECORA
377
bium, titanium, zirconium, rare earths, and uranium—as well
as the common commodities—barium, strontium, magnetite,
phosphate, and vermiculite.
In a later paper (1962), Bill concentrated on the carbona-
.
.. ~ ,,
% ~ ·
.
tote problem In the oearpaw Mountains, where a composite
alkalic stock contains a volcanic neck of subsilicic porphyritic
cancrinite syenite, partly altered to sericite, calcite, sulfide min-
erals, barite, and zeolites. Subsequent fracturing was followed
by introduction of pegmatites and veins, composed of K-
feldspar, biotite, calcite, pyrrhotite, pyrite, uranium-rich pyro-
chlore, rare-earth carbonates, barite, and ilmenite, a suite of
minerals that is typical of carbonatites, having considerable
economic potential. These differing mineral assemblages nose
. . . . . .. . . .
~ 1
some problems In geochem~cal history, but the evidence indi-
cates that early ma~,matic crystallization of silicates yielded an
aqueous residual fluid that became progressively enriched in
CO,, S. F. P. Ca, Fe, and Mg.
Geochemistry has long been one of the fields of major in-
terest in the Geological Survey, and during the mid-l9bOs there
was a growing recognition of its increased importance in the
Survey program. In 1957, Bill vitas selected to be Chief of the
Branch of Geochemistry and Petrology because of his back-
ground in field geology, mineralogy, petrology, and geochem-
istry. He effectively recruited talented youngsters to appre-
ciably strengthen the research capability in these joint disci-
plines. Many of these early recruits are still with the Survey,
whereas others were attracted to university positions that they
now occupy with distinction. Bill strengthened activities he
believed there undernourished, establishing strong programs
in geochronology, experimental petrology, and mineralogy. As
Branch Chief, he played an important catalytic role when nat-
ural coesite was discovered and its significance as an indicator
of meteorite impact on both the earth and the moon was
pointed out. In 1961, Bill returned to his former status of Re-
. . .. . .
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378
BIOGRAPHICAL MEMOIRS
search Geologist, and during this interval he wrote an important
paper on the carbonatite problem in the Bearpaw Mountains.
Bill Pecora was named Chief Geologist in 1964, and a year
later was appointed Director of the Survey by President Lyndon
B. Johnson. As Director, he pressed vigorously for programs
that would be responsive to current and emerging national
problems, such as the accelerated investigations of gold re-
sources when national stocks were being depleted at an alarm-
ing rate and investigations for offshore development of oil and
gas in anticipation of the impending energy dilemma. In re-
sponse to problems revealed by the Alaska earthquake of 1964,
he obtained approval to establish the National Center of
Earthquake Research in Menlo Park, California, now an im-
portant center for earthquake studies.
The Santa Barbara oil spill on January 28, 1969, was the
first major challenge to face Bill Pecora as Director, and he
moved forcefully into action with the firm conviction that the
fundamental facts must be determined in order to reach a
rational decision. Many of these facts are available to the public
in Geological Survey Professional Paper 679, published
promptly under his direction in 1969. An account of Bill
Pecora and his activities as Director at that time is given below.
"One old timer among the newcomers in Washington was
William Pecora, Director of the U.S. Geological Survey. Pecora
had 30 years of distinguished service with the U.S.G.S. to his
credit, and was held in high esteem by his colleagues in science
and government. For the recriminations associated with Santa
Barbara, Pecora was the most senior scapegoat. Secretary Udal]
was no longer around to take the rap; and Secretary Hickel . . .
could scarcely be blamed for the original blowout. But Pecora—
Pecora was in command of the agency that was most intimately
connected to the original leasing in the Santa Barbara Channe]
and the subsequent management of operations there. When
appointed as director in 1965, he had taken over a staid and
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WILLIAM THOMAS PECORA
. .
379
scientifically respectable agency with a history of conservatism.
. Pecora, a former Olympic athlete, liked action and the per-
sonal engagement of Washington politics. His activity in policy
matters and in defense of U.S.G.S. programs brought his agency
into the rough political world.... True, his biography does
lean to degrees, scientific societies, research honors, and mem-
bership in national academies, but, good poker player that he
is, he took bad deals well, and his appointment in 1971 as
Undersecretary of the Interior was helped more than hurt by
his performance in Santa Barbara." ~
The discovery of large reserves of oil and gas in 1968 on
the north coast of Alaska led to Bill's second major challenge.
A large part of Alaska is underlain by permafrost, which would
melt beneath the pipeline proposed to transport hot oil to
southern Alaska, where harbors are available for tankers in an
area of major earthquake faults. Again, Bill insisted that all
of the geological factors involved should be assembled and
analyzed before making decisions, and the Geological Survey
made ~ careful study of the geological aspects of the proposed
pipeline route. Bill arranged for the mechanism for discus-
sions between industry and government agencies that led to the
preparation of environmental and technical stipulations for the
construction of the trans-Alaska pipeline. These are now a part
of the permit and, if properly monitored, will provide accept-
able protection of Alaska's unique environment and will also
provide access to the area's vast resources of petroleum.
Bill recognized that conventional methods of gathering re-
sources and environmental data were not providing information
as rapidly as our expanding population and economy required.
He believed that aircraft and spacecraft might gather important
data quickly, effectively, find economically; thus, he actively
~ From Carol E. and John S. Steinhart, Blowout: A Case Steady of the Santa
Barbara Oil Spill (Belmont, Calif.: Wadsworth Publishing Co., Inc., 1972),
p. 12; reprinted by permission of the publisher, Duxbury Press, North Scituate,
Mass.
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380
BIOGRAPHICAL MEMOIRS
supported research in photogeology and remote sensing. As a
result of this research, new aerial methods were developed for
finding fresh water, surveying volcanoes, and assessing the en-
vironment. In 1964, he formed an association with the National
Aeronautics and Space Administration (NASA) that enabled
the Geological Survey to accelerate its remote sensing research
and extend it to include analyses of the potential values of sur-
veying the earth from space. Results of these spacecraft studies
led Bill to recommend that the Secretary of the Interior estab-
lish a departmental program to survey the Earth from space and
to extend the research in remote sensing to meet needs of all
bureaus of the department. This recommendation led to the
establishment of the Earth Resources Observation Systems
(EROS) Program, which was announced on September 21, 1966.
Bill directed that performance specifications be developed to
provide "remote sensing data of maximum usefulness to the
maximum number of scientists and technicians throughout the
world."
The performance specifications for the space survey, co-
ordinated and refined in cooperation with the Department of
Agriculture, were delivered to NASA on October 21, 1966, for
implementation; and the first Earth Resources Technology
Satellite (EATS-1) was launched on July 23, 1972, just three
days after Bill's death. Without the vision and drive of Pecora,
there might never have been an EROS Program.
Although the announcement of the EROS Program pro-
duced varied reactions, Bill strongly emphasized the need and
soundness of the program, and on December 10, 1974, the New
York Times quoted Dr. James C. Fletcher, Administrator of
NASA, as saying, "If I had to pick one spacecraft, one space
age development, to help the world, I would pick ERTS and
the operational satellites which I believe will be evolved from
it, later in this decade." Bill placed Earth in a new perspective.
Directors of federal organizations make annual pilgrimages
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WILLIAM THOMAS PECORA
381
to Congress to defend their requests for funds, and Bill Pecora
was superb in his meetings with the appropriation committees,
always presenting his requests in an articulate and friendly
manner. Because of his excellent memory for detail, he could
answer pertinent questions from the members of the commit-
tees clearly and forcefully and with a delightful sense of humor
if the situation vitas appropriate. He always left the members
of the committees well aware of the importance of the USGS
program and its benefits to the taxpayer.
During the period Bill Pecora served as Director of the
Geological Survey and Undersecretary of the Department of
Interior, he became increasingly involved with the geological
aspects of problems concerning our environment. In his Horace
M. Albright conservation lecture, given at Berkeley on January
18, 1972, he emphasized "inadequate data persist in the arena of
assessment and decision making. Consumers demand a con-
tinuing supply of energy and resource products on one hand,
and demand maximum pollution protection on the other....
Geologic science demonstrates that nature is a massive polluter
of the environment. In comparison, man's activity is of little
consequence on a planetary scale in some issues, but may be of
~~_~;~J~ ____ i$A ~ 1~J~_L~1 ~_~_~L..... Science and research
churl n 1 1 c roan can 1 1 AN rid 1 n ~ I Arm 1 roan tear t
are needed more than ever to provide guidance to courses of
national action aimed at fulfilling human needs. As the most
intelligent species on earth, man can certainly provide for him-
self and yet prudently protect the total ecosystem from unneces-
sary and unacceptable degradation."
A Committee on Geological Sciences of the National Re-
search Council sponsored a study, "The Earth and Human
Affairs," and Bill Pecora met informally with this group on
several occasions, inspiring the members with his enthusiasm
for the job at hand. In appreciation, the published reports
~ National Academy of Sciences, The Earth and Human Affairs (San Francisco:
Canheld Press, 1972).
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382
BIOGRAPHICAL MEMOIRS
was dedicated "To the memory of William T. Pecora, an early,
effective, and enthusiastic advocate of 'the geologic per-
spective'."
Bill Pecora made many contributions to the official and
nonofficial activities of the employees of the Geological Survey.
During the period from 1947 to 1967, he was an effective mem-
ber of the U.S. Civil Service Commission's Board of Examiners
for Geology, concerned with the development and maintenance
of high standards in the selection of geologists for federal em-
ployment. He was always a live wire at the various scientific
meetings of geologists held in Washington, D.C., where he
could be counted upon to probe the strengths and weaknesses
of the speakers' presentations and stories. For many years, he
was an active participant in the Survey's Pick and Hammer
shows, which revere presented primarily to poke fun at the Sur-
vey brass. Some of his particularly hilarious performances are
still vividly remembered by the cast and audience. Shortly
after becoming, Director, he was a speaker at a conference in-
cluding two eminent science advisors and the President of the
National Academy of Sciences. When Bill was introduced, he
began by addressing these gentlemen as "Your Highness,"
"Your Excellency," and "Your Worship"; the character of the
meeting was somewhat modified after that greeting.
Bill Pecora was the recipient of many honors during his pro-
fessional career. Among these that deserve mention are the
presidencies of the Geological Society of Washington ( 1964)
and of the Cosmos Club (Washington, D.C., 1968~. He was a
Fellow and Councilor of the Geological Society of America and
of the Mineralogica] Society of America. He alas elected Hon-
orary Member of the Rocky Mountain Association of Geologists.
He received the Doctor of Science degree from Franklin and
Marshall College (1969) and Doctor of Engineering degree from
the Colorado School of Shines (1970~. The American Associa-
tion of Petroleum Geologists presented him with its Public
OCR for page 383
WILLIAM THOMAS PECORA
383
Service Award (1972~. He received the Distinguished Service
Award of the Department of the Interior (1968) and the Rocke-
feller Public Service Award (1969~. He was a Foreign Member
of the Brazilian Academy of Sciences. The American Philo-
sophical Society elected him to membership (1970) and he was
a Fellow of the American Academy of Arts and Sciences (1965~.
He was elected to the National Academy of Sciences in 1965.
On April 7, 1947, William T. Pecora married Ethelwyn
Elizabeth Carter from Franklin County, Kentucky. They had
two children, William Carter, born in 1949, and Ann Stewart,
born in 1953. The Pecora family lived in a house near the
Potomac River that was designed by an architect friend. After
becoming a homeowner, Bill developed into an enthusiastic
gardener, which helped him to forget temporarily troublesome
problems left in the office. He was particularly enthusiastic
about Camellia sasanqua and he planted many of the shrubs
in his garden. Bill and EthelwYn enioved entertaining Quests
~ 1_ 1 1 7
J J ~ ~ ~
In sneer lovely name, where Bill presided over the carving of the
roast and extolled the virtues of the red wine that he had just
discovered in one of the many liquor stores in Washington, D.C.
In 1973, a 6000-foot ridge in the Bearpaw Mountains was
named Pecora Ridge in honor of Bill. The ridge extends
southwest about two miles from the 6916-foot top of Baldy
Mountain and forms the divide between Eagle Creek and the
headwaters of Birch and Little Birch creeks. In the summer of
1973, William Carter Pecora carried the ashes of his father and
those of Esper S. Larsen 3d, Bill's close friend since Harvard
days, to the top of Baldy Mountain. This was an appropriate
mission as Bill dearly loved the Bearpaw Mountains.
On July 21, 1972, at the auditorium of the Department of
the Interior, U.S. Geological Survey Director V. E. McKelvey
delivered a eulogy for Bill: "It is hard for any of us here to be-
lieve that Bill Pecora—our loved one, friend, colleague, leader—
is no longer with us. We have suffered a loss that we are only
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384
BIOGRAPHICAL i\IEMOIRS
beginning to fathom but it is a loss we know we cannot replace.
There will be no replacement for Bill's smile and hearty
chuckle, his intellect, his uncanny ability to perceive the solu-
tion to seemingly unsolvable problems, his cool in the midst
of crisis, his verve in approaching, a difficult situation, his con-
ta7ious excitement over a new idea, his ability to inspire, to
bring out our best efforts, to lead us to accomplishments that
fire never dreamed revere possible. We know too that our loss
as loved ones, friends, and colleagues is not ours alone. It is
the Nation's loss and the world's, for Bill Pecora's talents were
being effectively applied to the solution of problems of great
national and international significance."
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WILLIAM THOMAS PECORA
BIBLIOGRAPHY
KEY TO ABBREVIA TIONS
385
Am. Assoc. Pet. Geol. Bull. = American Association of Petroleum Geolo-
gists Bulletin
Am. Mineral. = American Mineralogist
Braz. Div. Fom. Prod. Mirier. .\vulso = Brazil, Divisao de Fomento da
Produc~ao Mineral Avulso
Geol. Soc. Am. Bull. —Geological Society of America Bulletin
Min. Congr. {. = Mining Congress Journal
U.S. Geol. Surv. Bull.—U.S. Geological Survey Bulletin
U.S. Geol. Surv. Misc. Geol. Invest. Map = U.S. Geological Survey NIis-
cellaneous Geologic Investigations Map
1941
Structure and petrology of the Boxelder laccolith, Bearpaw Moun-
tains, Montana. Geol. Soc. Am. Bull., 52:817-53.
With S. N\1. Hobbs. Nickel-gold deposit near Mount Vernon,
Skagit County, Washington. U.S. Geol. Surv. Bull. 931-D, pp.
57-78.
1942
With S. W. Hobbs. Nickel deposit near Riddle, Douglas County,
Oregon. U.S. Geol. Surv. Bull. 931-I, pp. 205-26.
Nepheline syenite pegmatites, Rocky Boy Stock, Bearpaw Moun-
tains, Montana. Am. Mineral., 27:397~424.
Nickel-copper deposits on the west coast of Chicagof Island, Alaska.
U.S. Geol. Surv. Bull. 936-I, pp. 221-43.
1944
Nickel-silicate and associated nickel-cobalt-manganese deposits
near Sao lose do Tocantins, Goiaz, Brazil. U.S. Geol. Surv.
Bull. 935-E, pp. 247-305.
1945
With A. L. Barbosa. Bananal mica mine, Minas Gerais, Brazil.
Braz. Div. Fom. Prod. Miner. Avulso, no. 67, 32 pp.
With A. L. Barbosa. Mica in the Serra dos Lourencos, Minas Gerais.
Braz. Div. Fom. Prod. Miner. Avulso, no. 68, 42 pp.
1946
With Bernard Fisher. Drusy vugs in a monzonite dike, Bearpaw
Mountains, Montana. Am. Mineral., 31:370-85.
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386
BIOGRAPHICAL MEMOIRS
1949
With S. W. Hobbs and K. J. Murata. Variations in garnierite from
the nickel deposit near Riddle, Oregon. Economic Geology,
44:13-23.
With J. J. Fahey. ~ 1 O ---,
Brazil: scorzalite and souzalite, two new phosphate minerals.
Am. Mineral., 34:83-93.
With R. W. Brown. Paleocene and Eocene strata in the Bearpaw
Mountains, Montana. Science, 109:487-89.
With J. J. Fahey. Scorzalite from South Dakota, a new occurrence.
Am. Mineral., 34:685-87.
The Corre~o Frio Hematite Mina.s Gerais
1950
With J. J. Fahey. The lazulite-scorzalite isomorphous series. Am.
Mineral., 35: 1-18.
With H. M. Bannerman. Training geologists a United States
Geological Survey viewpoint. U.S. Geological Survey Circular
73, 6 pp.
With M. R. Klepper, D. M. Larrabee, A. L. Barbosa, and R. Frayha.
Mica deposits in Minas Gerais, Brazil. U.S. Geol. Surv. Bull.
964-C, pp. 205-305.
With G. Switzer, A. L. Barbosa, and A. T. Myers. Structure and
mineralogy of the Golconda pegmatite, Minas Gerais, Brazil.
Am. Mineral., 35:889-901.
1953
With M. L. Lindberg and A; L. Barbosa. Moraesite, a new hydrous
beryllium phosphate from Minas Gerais, Brazil. Am. Mineral.,
38:1126-33.
With l. H. Kerr. Burbankite and calkinsite, two new carbonate
minerals from Montana. Am. Mineral., 38:1169-83.
1954
With J. H. Kerr. Whewellite from a septarian limestone concretion
in marine shale near Havre, Montana. Am. Mineral., 39:208-14.
With 1~. L. Lindberg. Tavorite and barbosalite, two new phosphate
minerals from Minas Gerais, Brazil. Science, 119:739.
With R. E. Van Alstine. Results of recent nationwide geology
examinations offered by the U.S. Civil Service Commission. Am.
Assoc. Pet. Geol. Bull., 38:2011-16.
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WILLIAM THOMAS PECORA
387
With M. L. Lindberg. Avelinoite, a new hydrous sodium ferric
phosphate from Minas Gerais, Brazil. Science, 120:1074-75.
1955
With M. L. Lindberg. Tavorite and barbosalite, two new phosphate
minerals from Minas Gerais, Brazil. Am. Mineral., 40:952-66.
1956
Carbonatites a review. Geol. Soc. Am. Bull., 67:1537-55.
1957
With I. l. Witkind and D. B. Stewart. Preliminary general geologic
map of the Laredo Quadrangle, Bearpaw Mountains, Montana.
U.S. Geol. Surv. Misc. Geol. Invest. Map I-234.
With D. B. Stewart, D. B. Engstrom, and H. R. Dixon. Preliminary
geologic map of the Centennial Mountain Quadrangle, Bearpaw
Mountains, Montana. U.S. Geol. Surv. Misc. Geol. Invest. Map
I-235.
With i. H. Kerr, D. B. Stewart, and H. R. Dixon. Preliminary geo-
logic map of the Shambo Quadrangle, Bearpaw Mountains,
Montana. U.S. Geol. Surv. Misc. Geol. Invest. Map I-236.
With others. Preliminary geologic map of the Warrick Quadrangle,
Bearpaw Mountains, Montana. U.S. Geol. Surv. Misc. Geol.
Invest. Map I-237.
1958
With M. L. Lindberg. Phosphate minerals from the Sapucaia peg-
matite mine, Minas Gerais. Sociedade Brasileira de Geologia
Boletim, 7:1-14.
1960
Coesite craters and space geology. Geotimes, 5~2~: 16-19.
With B. Bryant and R. G. Schmidt. Geology of the Maddux Quad-
rangle, Bearpaw Mountains, Blaine County, Montana. U.S.
Geol. Surv. Bull. 1081-C, pp. 91-116.
1961
With R. G. Schmidt, B. Bryant, and W. G. Ernst. Geology of the
Lloyd Quadrangle, Bearpaw Mountains, Blaine County, Mon-
tana. U.S. Geol. Surv. Bull. 1081-E, pp. 159-88.
OCR for page 388
388
B I O G R A P H I C A L M E M O I R S
1962
Memorial to Esper Signius Larsen, Jr. Geol. Soc. Am. Bull., 73:
27-29.
With B. G. Hearn, Jr., and Charles Milton. Origin of spherulitic
phosphate nodules in basal Colorado Shale, Bearpaw Mountains,
Montana. U.S. Geological Sll~v~v Prnf`~cinnn1 Arts Ban
30-35.
~~ J ~ v_ ~ ~lJ=1 (JV-1J~ it.
Memorial to Esper Signius Larsen, 3d. Am. Mineral., 47:460-63.
Review of geology, 1961. In Frank aunt Wr~.`rnailc 70~;7 OPEL Read
~ rev Rev ~ ~ ~ ^ · ~~! ~ TV—~
pp. ~15-77. New York: Standard Reference Works P~hlishin~
Co., Inc.
~ ~ , . . .
~ ~ ~
aroonat~te problem in the Bearpaw Mountains, Montana. In:
Petrologic Studies: A Volume in Honor of A. F. B~ddington,
ed. by A. E. i. Engel, Harold L. James, and B. F. Leon~rcl an
83-104. New York: Geological Society of America.
~, Or
With R. G. Schmidt and B. C. Hearn, [r. Geology of the Cleveland
Quadrangle, Bearpaw Mountains, Blaine County, Montana.
U.S. Geol. Surv. Bull. 1141-P, 26 pp.
1963
With B. C. Hearn, Jr., and \\T. C. LSwacllev ~f~ol~v ^~ the Battle
snake Quadrangle, Bearpaw Mountains, Blaine County, iMon-
tana. U.S. Geol. Surv. Bull. 1181-B, 66 pp.
Geology 1962. In: Plink and V[7agnalls 1962 Year Book, p. 132.
New York: Standard Reference Works Publishing Co., Inc.
'' In-_ 7. ~~v$V~ y ~1 Lila ~aLLlC-
1965
Current geologic research as a guide for future mineral exploration.
In: Minerals Day Collected Papers. Skokie, Ill., International
Minerals and Chemical Corporation, Mining and Exploration
Division, pp. 54-80.
Geologic science and the future of man: arid and semi-arid lands-
a preview. ICASALS Publication, Texas Technical Institute,
1:49-56.
1966
Edith Meyer Rubin. Absolute dating and the history of man. In:
Time and Stratigra~phy in the Evolution of Man. National
Academy of Sciences-National Research Council Publ. 1469:
43-56.
OCR for page 389
WILLIAM THOMAS PECORA
389
National Center for earthquake research. Geotimes, 10~: 13.
Geology in modern society. North Dakota Quarterly, 34~2~:45~7.
1967
Surveying the Earth's resources from space. Surveying and Mapping,
27:639-43.
1968
Searching out resource limits. University of Texas Quarterly, 11:
148-54.
Erforschung von Bodenschatzen vom Weltraum aus. Umschau, 68:
727.
1969
New horizons in natural resources management. The Professional
Geographer, 21~2~:73-78.
Mineral potential of the continental margin. AIAA Student ~our-
nal, 7: 70-75.
Use of WAE When actually employed appointments. In: Sympo-
sium on Education and Federal Laboratory-University Relation-
ships. Federal Council for Science and Technology, American
Council on Education, pp. 181-87.
Surveying the Earth's resources from space. TRW Space Log, 9:
2-15.
1970
Earth resource observations from an orbiting spacecraft. In: Astro-
physics and Space Science Library, pp. 75-87. Dordrecht, Hol-
land: D. Reidel Publishing Company.
Resources and environment quest for balance.
August 1970, pp.65-70.
Min. Congr. J.,
Science and the quality of our environment. Bulletin of the Atomic
Scientists, October 1970, pp.20-23.
The influence of modern life on the work of the Geological Survey.
Annales, Instituti Geologici Publici Hungarici, 54:99-103.
Challenge of change the need for new mineral resources to main-
tain the economic and social health of the free world. Min.
Congr. J., November 1970, pp. 77-81.
The role of the U.S. Geological Survey in natural resource evalua-
tion. In: Santa Barbara Oil Symposium, December 16-18, pp.
271-82.
OCR for page 390
390
B I O G R A P H I C A L M E M O I R S
1971
Uniqueness of man and his environment. Am. Assoc. Pet. Geol.
Bull., 55:1715-18.
1972
Remote sensing of earth resources users, prospects and plans. Com-
mittee on Science and Astronautics, U.S. House of Representa-
tives, January 26, 1972, pp. 1-8.
The administration's energy message and program. The Conference
Board Record, 9~7) :27-30.
Geologic base line for conservation philosophy. Congressional
Record, March 21, pp. H2307-H2309. Horace M. Albright Lec-
ture IJniver.sirv of California, Berkeley, January 18, 1972.
OCR for page 391
Representative terms from entire chapter:
geological survey
