Adolph Knopf (December 2, 1882 – November 23, 1966) was an American
geologist
A geologist is a scientist who studies the solid, liquid, and gaseous matter that constitutes Earth and other terrestrial planets, as well as the processes that shape them. Geologists usually study geology, earth science, or geophysics, althou ...
. Educated at the
University of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...
, he held professional appointments at the
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...
,
Yale University
Yale University is a private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the third-oldest institution of higher education in the United States and among the most prestigious in the wo ...
, and
Stanford University
Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...
. He was primarily a
petrologist
Petrology () is the branch of geology that studies rocks and the conditions under which they form. Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together ...
and
mineralogist
Mineralogy is a subject of geology specializing in the scientific study of the chemistry, crystal structure, and physical (including optical) properties of minerals and mineralized artifacts. Specific studies within mineralogy include the proces ...
, though later in his career contributed to
geochronology
Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves. Absolute geochronology can be accomplished through radioactive isotopes, whereas relative geochronology is pr ...
. He performed much of his field work in the western United States, investigating
mineral deposits
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid chemical compound with a fairly well-defined chemical composition and a specific crystal structure that occurs naturally in pure form.John P. Rafferty, ed. (2 ...
in
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
, the
Boulder Batholith
The Boulder Batholith is a relatively small batholith in southwestern Montana, United States, exposed at the surface as granite (more specifically quartz monzonite) and serving as the host rock for rich mineralized deposits at Butte and other loc ...
in
Montana
Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi ...
, and the
Gold Country
The Gold Country (also known as Mother Lode Country) is a historic region in the northern portion of the U.S. state of California, that is primarily on the western slope of the Sierra Nevada. It is famed for the mineral deposits and gold mines ...
of
California
California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...
.
Knopf was a member of the
National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
and the
American Academy of Arts and Sciences
The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and ...
. He served as president of the
Geological Society of America
The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences.
History
The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchco ...
in 1944 and received its
Penrose Medal
The Penrose Medal was created in 1925 by R.A.F. Penrose, Jr., as the top prize awarded by the Geological Society of America. Originally created as the Geological Society of America Medal it was soon renamed the Penrose Medal by popular assent of t ...
in 1959.
[Eckel, Edwin, 1982, GSA Memoir 155, The Geological Society of America — Life History of a Learned Society: Boulder, Colorado, Geological Society of America Memoir 155, 168 p., .] His second wife,
Eleanora Knopf
Eleanora Frances Knopf ( Bliss;
July 15, 1883 – January 21, 1974) was an American geologist who worked for the United States Geological Survey (USGS) and did research in the Appalachians during the first two decades of the twentieth century. ...
, was a notable geologist and frequent collaborator.
Early life
Knopf was born December 2, 1882, in
San Francisco, California
San Francisco (; Spanish for " Saint Francis"), officially the City and County of San Francisco, is the commercial, financial, and cultural center of Northern California. The city proper is the fourth most populous in California and 17th ...
, to
German American
German Americans (german: Deutschamerikaner, ) are Americans who have full or partial German ancestry. With an estimated size of approximately 43 million in 2019, German Americans are the largest of the self-reported ancestry groups by the Unite ...
immigrants. His father was a building contractor.
He grew up with his family on a ranch near
Woodside, California
Woodside is a small incorporated town in San Mateo County, California, United States, on the San Francisco Peninsula. Woodside is among the wealthiest communities in the United States, home to many technology billionaires and investment manager ...
.
Career
Knopf entered the
University of California, Berkeley
The University of California, Berkeley (UC Berkeley, Berkeley, Cal, or California) is a public land-grant research university in Berkeley, California. Established in 1868 as the University of California, it is the state's first land-grant u ...
, where he became a student of
petrology
Petrology () is the branch of geology that studies rocks and the conditions under which they form. Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together ...
under
Andrew Lawson
Andrew Cowper Lawson (July 25, 1861 – June 16, 1952) was a Scots-Canadian geologist who became professor of geology at the University of California, Berkeley. He was the editor and co-author of the 1908 report on the 1906 San Francisco earthq ...
. He earned a
Bachelor of Science
A Bachelor of Science (BS, BSc, SB, or ScB; from the Latin ') is a bachelor's degree awarded for programs that generally last three to five years.
The first university to admit a student to the degree of Bachelor of Science was the University of ...
degree in
mining geology
Mining geology is an applied science which combines the principles of economic geology and mining engineering to the development of a defined mineral resource. Mining geologists and engineers work to develop an identified ore deposit to economica ...
in 1904 and a
Master of Science
A Master of Science ( la, Magisterii Scientiae; abbreviated MS, M.S., MSc, M.Sc., SM, S.M., ScM or Sc.M.) is a master's degree in the field of science awarded by universities in many countries or a person holding such a degree. In contrast to ...
degree in 1905. That same year he spent the first of six summers surveying the mineral deposits of
Alaska
Alaska ( ; russian: Аляска, Alyaska; ale, Alax̂sxax̂; ; ems, Alas'kaaq; Yup'ik: ''Alaskaq''; tli, Anáaski) is a state located in the Western United States on the northwest extremity of North America. A semi-exclave of the U.S., ...
for the
United States Geological Survey
The United States Geological Survey (USGS), formerly simply known as the Geological Survey, is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, ...
(USGS). In 1906 he moved to
Washington, D.C.
)
, image_skyline =
, image_caption = Clockwise from top left: the Washington Monument and Lincoln Memorial on the National Mall, United States Capitol, Logan Circle, Jefferson Memorial, White House, Adams Morgan, ...
, to work for the USGS full-time. The Alaskan Division, of which Knopf was one of about a dozen members, was considered the best geologic group in the USGS at that time. Knopf's work on
tin
Tin is a chemical element with the symbol Sn (from la, stannum) and atomic number 50. Tin is a silvery-coloured metal.
Tin is soft enough to be cut with little force and a bar of tin can be bent by hand with little effort. When bent, t ...
deposits in the
Seward Peninsula
The Seward Peninsula is a large peninsula on the western coast of the U.S. state of Alaska whose westernmost point is Cape Prince of Wales. The peninsula projects about into the Bering Sea between Norton Sound, the Bering Strait, the Chukchi S ...
became the basis of the dissertation for his Ph.D., which he received from Berkeley in 1909. In Alaska he also discovered the minerals hulsite and paigeite.
[
In 1911 Knopf was promoted from assistant geologist to geologist. Over the next nine years he undertook a series of field projects for the USGS, beginning with the mining district in ]Montana
Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columbi ...
that includes the Boulder Batholith
The Boulder Batholith is a relatively small batholith in southwestern Montana, United States, exposed at the surface as granite (more specifically quartz monzonite) and serving as the host rock for rich mineralized deposits at Butte and other loc ...
and continuing to other western states including Nevada
Nevada ( ; ) is a U.S. state, state in the Western United States, Western region of the United States. It is bordered by Oregon to the northwest, Idaho to the northeast, California to the west, Arizona to the southeast, and Utah to the east. N ...
and California. In the latter state he surveyed the Gold Country
The Gold Country (also known as Mother Lode Country) is a historic region in the northern portion of the U.S. state of California, that is primarily on the western slope of the Sierra Nevada. It is famed for the mineral deposits and gold mines ...
. After discovering that universities on the eastern seaboard were paying about double the USGS salaries, Knopf left the USGS for a teaching position, and a number of his colleagues followed suit. Knopf began at Yale University
Yale University is a private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the third-oldest institution of higher education in the United States and among the most prestigious in the wo ...
in January 1920. He encouraged students to work with the USGS as he had done; this helped mitigate the agency's brain drain following the departures.[
Knopf began at Yale as an associate professor but was promoted to full professor in 1923. He was named the Silliman Professor of Geology in 1937 and a ]Sterling Professor
Sterling Professor, the highest academic rank at Yale University, is awarded to a tenured faculty member considered the best in his or her field. It is akin to the rank of university professor at other universities.
The appointment, made by the ...
in 1938.[ He was director of graduate studies from 1933 until his retirement from Yale in 1951.][ Upon retiring he returned to his native Woodside, California, settling not far from his family's old ranch. There he accepted a visiting appointment at the ]Stanford University
Stanford University, officially Leland Stanford Junior University, is a private research university in Stanford, California. The campus occupies , among the largest in the United States, and enrolls over 17,000 students. Stanford is consider ...
School of Earth Sciences, where he remained until his death in 1966.[
Knopf's field work continued through his Yale and Stanford appointments, again with a focus on western states. He continued his work in the Boulder Batholith and investigated intrusive ]igneous rock
Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main The three types of rocks, rock types, the others being Sedimentary rock, sedimentary and metamorphic rock, metamorphic. Igneous rock ...
bodies in the Spanish Peaks
The Spanish Peaks are a pair of prominent mountains located in southwestern Huerfano County, Colorado, Huerfano County, Colorado. The Comanche people, Comanche people call them Huajatolla ( ) or Wa-to-yah meaning "double mountain".
The two peak ...
in Colorado
Colorado (, other variants) is a state in the Mountain West subregion of the Western United States. It encompasses most of the Southern Rocky Mountains, as well as the northeastern portion of the Colorado Plateau and the western edge of t ...
. He also contributed to the emerging field of geochronology
Geochronology is the science of determining the age of rocks, fossils, and sediments using signatures inherent in the rocks themselves. Absolute geochronology can be accomplished through radioactive isotopes, whereas relative geochronology is pr ...
, putting lower bounds of 2 billion years and later 4.5 billion years on the age of the Earth
The age of Earth is estimated to be 4.54 ± 0.05 billion years This age may represent the age of Earth's accretion, or core formation, or of the material from which Earth formed. This dating is based on evidence from radiometric age-dating of ...
.[
Knopf was elected to the ]National Academy of Sciences
The National Academy of Sciences (NAS) is a United States nonprofit, non-governmental organization. NAS is part of the National Academies of Sciences, Engineering, and Medicine, along with the National Academy of Engineering (NAE) and the Nati ...
in 1931. He was also a Fellow of the American Academy of Arts and Sciences
The American Academy of Arts and Sciences (abbreviation: AAA&S) is one of the oldest learned societies in the United States. It was founded in 1780 during the American Revolution by John Adams, John Hancock, James Bowdoin, Andrew Oliver, and ...
[ and of the ]Geological Society of America
The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences.
History
The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchco ...
. He was president of the Geological Society of America
The Geological Society of America (GSA) is a nonprofit organization dedicated to the advancement of the geosciences.
History
The society was founded in Ithaca, New York, in 1888 by Alexander Winchell, John J. Stevenson, Charles H. Hitchco ...
in 1944, and he received the Penrose Medal
The Penrose Medal was created in 1925 by R.A.F. Penrose, Jr., as the top prize awarded by the Geological Society of America. Originally created as the Geological Society of America Medal it was soon renamed the Penrose Medal by popular assent of t ...
in 1959.[ In 1937 he was vice president of the ]Society of Economic Geologists
The Society of Economic Geologists (SEG) is a scientific organization that promotes the study of geology as it relates to mining, mineral exploration, mineral resource classification and mineral extraction. The society's Publication Board publishe ...
.
Personal life
In 1908 Knopf married Agnes Burchard Dillon. They had three daughters and one son,[ though one of the daughters died in infancy. Agnes died in 1918 in that year's ]flu pandemic
An influenza pandemic is an epidemic of an influenza virus that spreads across a large region (either multiple continents or worldwide) and infects a large proportion of the population. There have been six major influenza epidemics in the last ...
.[ In June 1920,][ Knopf married fellow USGS geologist Eleanora Frances Bliss, who as ]Eleanora Knopf
Eleanora Frances Knopf ( Bliss;
July 15, 1883 – January 21, 1974) was an American geologist who worked for the United States Geological Survey (USGS) and did research in the Appalachians during the first two decades of the twentieth century. ...
became a frequent collaborator and travel companion. When Adolph moved to Yale, which did not then hire women, Eleanora worked out of Adolph's office, teaching private classes and still accepting USGS assignments. When they moved to California, Stanford hired her as a research associate.
Legacy
Knopf died November 23, 1966, in Palo Alto, California
Palo Alto (; Spanish language, Spanish for "tall stick") is a charter city in the northwestern corner of Santa Clara County, California, United States, in the San Francisco Bay Area, named after a Sequoia sempervirens, coastal redwood tree kno ...
.[ In his ]will
Will may refer to:
Common meanings
* Will and testament, instructions for the disposition of one's property after death
* Will (philosophy), or willpower
* Will (sociology)
* Will, volition (psychology)
* Will, a modal verb - see Shall and will
...
he endowed a chaired professorship at Yale.[ The sitting Adolph Knopf Professor of Petrology is Shun-ichiro Karato. Adolph and Eleanora Knopf also endowed a graduate fellowship in petrology at Stanford.][ Mount Adolph Knopf in Juneau Borough, Alaska is named after him.]
References
External links
Hulsite mineral data
{{DEFAULTSORT:Knopf, Adolph
1882 births
1966 deaths
People from Woodside, California
American people of German descent
University of California, Berkeley alumni
United States Geological Survey personnel
Yale University faculty
Stanford University faculty
20th-century American geologists
Petrologists
American mineralogists
Members of the United States National Academy of Sciences
Fellows of the American Academy of Arts and Sciences
Penrose Medal winners
Fellows of the Geological Society of America
Yale Sterling Professors
Scientists from California
Presidents of the Geological Society of America