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Formation of the "steer's head" geometry of sedimentary basins by differential stretching of the crust and mantle

Nicky White and Dan McKenzie
Formation of the "steer's head" geometry of sedimentary basins by differential stretching of the crust and mantle
Geology (Boulder) (March 1988) 16 (3): 250-253

Abstract

If the lithospheric mantle is stretched over a wider region than the crust, postrift stratigraphic onlap will occur at basin margins, giving rise to a "steer's head" geometry. Space problems are avoided by making the total amount of extension in the lithospheric mantle equal to that in the crust. The predicted pattern of onlap agrees well with that observed if the lithospheric mantle is stretched over a fractionally wider region than is the crust. Thus, extensive stratigraphic onlap can be produced easily without recourse to sea-level rise or flexural rigidity.


ISSN: 0091-7613
EISSN: 1943-2682
Coden: GLGYBA
Serial Title: Geology (Boulder)
Serial Volume: 16
Serial Issue: 3
Title: Formation of the "steer's head" geometry of sedimentary basins by differential stretching of the crust and mantle
Affiliation: Univ. Cambridge, Dep. Earth Sci., Cambridge, United Kingdom
Pages: 250-253
Published: 198803
Text Language: English
Publisher: Geological Society of America (GSA), Boulder, CO, United States
References: 34
Accession Number: 1988-027173
Categories: Structural geology
Document Type: Serial
Bibliographic Level: Analytic
Annotation: Univ. Cambridge, Dep. Earth Sci., Contrib. No. 1601
Illustration Description: illus. incl. sects.
Country of Publication: United States
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute.
Update Code: 1988
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