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GEOREF RECORD
On the early history of the earth
William L. Donn, Bertram D. Donn and Wilbur G. Valentine
On the early history of the earth
Geological Society of America Bulletin (1965) 76 (3): 287-306
On the early history of the earth
Geological Society of America Bulletin (1965) 76 (3): 287-306
Index Terms/Descriptors
- absolute age
- age
- continents
- crust
- dates
- Earth
- genesis
- geosynclines
- metamorphic rocks
- North America
- origin
- Mantle segregation vs. impact of extraterrestrial material
- Decrease with time
- Cycle duration
- Deduced from surface temperatures and solar model
- Conditions of accumulation
- oldest rocks
- Relation to composition
Abstract
Calculation of the evolution of terrestrial surface temperatures from atmospheric composition and the most favorable solar model indicates either that model revision is necessary or that the Earth and Sun are older than 4.5 and 5.0 b.y., respectively. Rates of weathering and erosion have increased with geologic time so the duration of geosynclinal cycles should have decreased with time. Sialic crust existed at least 4 b.y. ago. Continental origin by mantle segregation is inconsistent with the age and thermal history of the Earth. Continental origin by impact of extraterrestrial material is reconsidered.
ISSN: 0016-7606
EISSN: 1943-2674
Coden: BUGMAF
Serial Title: Geological Society of America Bulletin
Serial Volume: 76
Serial Issue: 3
Title: On the early history of the earth
Pages: 287-306
Published: 1965
Text Language: English
Publisher: Geological Society of America (GSA),
Boulder, CO,
United States
Accession Number: 1965-014634
Categories: Geochronology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus., table
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2019, American Geosciences Institute. Reference includes data from Bibliography and Index of North American Geology, U. S. Geological Survey, Reston, VA, United States
Update Code: 1965
