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Inventions, Project Mohole

Collection Creator:
Ley, Willy, 1906-1969  Search this
Container:
Box 86, Folder 12
Type:
Archival materials
Date:
1959-64
Collection Restrictions:
No restrictions on access
See more items in:
Willy Ley Papers
Willy Ley Papers / Series 4: Non-Aerospace Subject Files
Archival Repository:
National Air and Space Museum Archives
EDAN-URL:
ead_component:sova-nasm-xxxx-0098-ref1114

Projects: Mohole, 1966

Collection Creator::
Smithsonian Institution. Office of the Secretary  Search this
Container:
Box 28 of 659
Type:
Archival materials
Collection Citation:
Smithsonian Institution Archives, Record Unit 99, Smithsonian Institution, Office of the Secretary, Records
See more items in:
Records
Records / Series 1a: Subject File / Box 28
Archival Repository:
Smithsonian Institution Archives
EDAN-URL:
ead_component:sova-sia-faru0099-refidd1e2296

"Project Mohole-Deep Sea Exploration," Encyclopedia Americana, July 1968

Collection Creator::
Heezen, Bruce C.  Search this
Container:
Box 24 of 102
Type:
Archival materials
Collection Citation:
Smithsonian Institution Archives, Record Unit 7464, Bruce C. Heezen Papers
See more items in:
Bruce C. Heezen Papers
Bruce C. Heezen Papers / Box 24
Archival Repository:
Smithsonian Institution Archives
EDAN-URL:
ead_component:sova-sia-faru7464-refidd1e16927

Harry Stephen Ladd Papers

Creator::
Ladd, Harry Stephen, 1899-  Search this
Extent:
2.58 cu. ft. (2 record storage boxes) (1 tall document box)
Type:
Collection descriptions
Archival materials
Diaries
Field notes
Scrapbooks
Black-and-white photographs
Date:
circa 1915-1982 and undated
Descriptive Entry:
These papers document Ladd's career with the USGS and his research on the geology of Pacific Islands. They include incoming and outgoing correspondence documenting field work, USGS matters, research and the publication of papers, and professional activities; diaries and field notes, mostly documenting his investigations in the Pacific; scrapbooks documenting personal and professional affairs, but which are particularly strong in documenting his role in the Crossroads Operation and Project Mohole; photographs, slides, and motion pictures, mostly from his field work in the Pacific; an oral history interview of Ladd conducted in 1977; and various manuscripts, notes, and lists from his research.
Historical Note:
Harry Stephen Ladd (1899-1982) received his Ph.D. in geology from the University of Iowa in 1925. The initial part of his professional career was spent in faculty positions at his alma mater and the University of Virginia, as a geologist with the Gulf Oil Company in Venezuela, and studying fossils under Edward Oscar Ulrich at the United States National Museum. Ladd began his career with the United States Department of Interior in 1936 when he was appointed Geologist with the National Park Service. In 1940, he joined the United States Geological Survey (USGS) as a Geologist. He remained with the USGS until his retirement in 1969. Ladd was a Research Associate in the Department of Paleobiology, National Museum of Natural History from 1969 until his death.

Ladd was an authority on the geology of the islands of the Pacific Ocean. He conducted extensive field work in the Pacific Basin and supervised deep sea drilling on Eniwetok, Midway and other atolls. He was also a major contributor to Project Mohole, a plan for drilling deep into the earth's inner crust on the Pacific Ocean floor near Hawaii. During 1946-1947, Ladd was in charge of geological work on Crossroads Operation which conducted the scientific survey and resurvey of Bikini Atoll, the site of atomic bomb tests. Ladd was active professionally and was a vice president of the Geological Society of America, 1955, and the American Association for the Advancement of Science, 1965, and President of the Paleontological Society, 1954.
Topic:
Operation Crossroads, 1946  Search this
Geology  Search this
Paleontology  Search this
Paleontologists  Search this
Geologists  Search this
Genre/Form:
Diaries
Field notes
Scrapbooks
Black-and-white photographs
Citation:
Smithsonian Institution Archives, Record Unit 7396, Harry Stephen Ladd Papers
Identifier:
Record Unit 7396
See more items in:
Harry Stephen Ladd Papers
Archival Repository:
Smithsonian Institution Archives
EDAN-URL:
ead_collection:sova-sia-faru7396

Petroleum: Project Mohole's Drilling, 1961-1976

Collection Creator::
National Museum of American History. Department of the History of Science and Technology  Search this
Container:
Box 1 of 6
Type:
Archival materials
Collection Citation:
Smithsonian Institution Archives, Accession 17-299, National Museum of American History. Department of the History of Science and Technology, Exhibition Records
See more items in:
Exhibition Records
Exhibition Records / Box 1
Archival Repository:
Smithsonian Institution Archives
EDAN-URL:
ead_component:sova-sia-fa17-299-refidd1e1375

Ladd, Harry S. (Harry Stephen), 1899-1982

Forename:
Harry  Search this
Middle Initial:
Stephen  Search this
Surname:
Ladd  Search this
Occupation:
Geologists
Paleontologists
Record type:
Personal name
Birth Date:
1899
Death Date:
1982
See more records related to affiliations:
Geological Survey (U.S.)
National Museum of Natural History (U.S.)
See more records associated with this person:
Ladd, Harry S. (Harry Stephen), 1899-1982
Data Source:
Smithsonian Field Book Project
EDAN-URL:
edanmdm:auth_per_fbr_EACP758

Lill, Gordon G.

Alternate Name:
Lill, G. G.  Search this
Forename:
Gordon  Search this
Middle Initial:
G.  Search this
Surname:
Lill  Search this
Record type:
Personal name
Birth Date:
1918
Death Date:
1996
See more records associated with this person:
Lill, Gordon G.
Data Source:
Smithsonian Field Book Project
EDAN-URL:
edanmdm:auth_per_fbr_EACP850

Ask Smithsonian: What's the Deepest Hole Ever Dug?

Creator:
Smithsonian Magazine  Search this
Type:
Blog posts
Smithsonian staff publications
Blog posts
Published Date:
Thu, 19 Feb 2015 16:59:31 +0000
Topic:
Search this
See more post:
Smithsonian Article Database
Data Source:
Smithsonian Magazine
EDAN-URL:
edanmdm:posts_53ce3d8b8a87ee0ffa0715e4ac484c3b

A Decades-Long Quest to Drill Into Earth's Mantle May Soon Hit Pay Dirt

Creator:
Smithsonian Magazine  Search this
Type:
Blog posts
Smithsonian staff publications
Blog posts
Published Date:
Mon, 25 Jan 2016 16:59:00 +0000
Topic:
Search this
See more post:
Smithsonian Article Database
Data Source:
Smithsonian Magazine
EDAN-URL:
edanmdm:posts_eba235b21aaa3452b0aeeaff3e5e78b4

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