Eocene-Pliocene stratigraphy along the southern margin of the Wind River Range, Wyoming: revisions and implications from field and fission-track studies.

J. R. Steidtmann, Larry T Middleton

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Suggested revisions of, and additions to the stratigraphy include: 1) recognition of the Cathedral Bluffs Tongue of the Wasatch Formation at Reds Cabin monocline, 2) establishment of a late Oligocene or early Miocene age for the South Pass Formation and 3) recognition that there are middle Miocene deposits previously mapped as Arikaree that consist of reworked Arikaree shed off the upthrown side of the Continental fault. The implications of these findings are that the Continental fault, now a collapse feature, was a tear fault during the early Eocene, that there are most likely Oligocene rocks north of the Continental fault, that there was late Oligocene or early Miocene uplift in the core of the Wind River Range and that the range collapsed in the middle Miocene. from Authors

Original languageEnglish (US)
Pages (from-to)19-25
Number of pages7
JournalMountain Geologist
Volume23
Issue number1
StatePublished - 1986
Externally publishedYes

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Pliocene
Eocene
stratigraphy
Miocene
Oligocene
river
monocline
uplift
rock

ASJC Scopus subject areas

  • Geology

Cite this

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abstract = "Suggested revisions of, and additions to the stratigraphy include: 1) recognition of the Cathedral Bluffs Tongue of the Wasatch Formation at Reds Cabin monocline, 2) establishment of a late Oligocene or early Miocene age for the South Pass Formation and 3) recognition that there are middle Miocene deposits previously mapped as Arikaree that consist of reworked Arikaree shed off the upthrown side of the Continental fault. The implications of these findings are that the Continental fault, now a collapse feature, was a tear fault during the early Eocene, that there are most likely Oligocene rocks north of the Continental fault, that there was late Oligocene or early Miocene uplift in the core of the Wind River Range and that the range collapsed in the middle Miocene. from Authors",
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AB - Suggested revisions of, and additions to the stratigraphy include: 1) recognition of the Cathedral Bluffs Tongue of the Wasatch Formation at Reds Cabin monocline, 2) establishment of a late Oligocene or early Miocene age for the South Pass Formation and 3) recognition that there are middle Miocene deposits previously mapped as Arikaree that consist of reworked Arikaree shed off the upthrown side of the Continental fault. The implications of these findings are that the Continental fault, now a collapse feature, was a tear fault during the early Eocene, that there are most likely Oligocene rocks north of the Continental fault, that there was late Oligocene or early Miocene uplift in the core of the Wind River Range and that the range collapsed in the middle Miocene. from Authors

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