Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic 36Cl and 14C in rock varnish

Fred M. Phillips; Marek G. Zreda; Stewart S. Smith; David Elmore; Peter W. Kubik; Ronald I. Dorn; David J. Roddy

doi:10.1016/0016-7037(91)90387-K

Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic ³⁶Cl and ¹⁴C in rock varnish

Fred M. Phillips, Marek G. Zreda, Stewart S. Smith, David Elmore, Peter W. Kubik, Ronald I. Dorn, David J. Roddy

Research output: Contribution to journal › Article › peer-review

79 Scopus citations

Abstract

Using cosmogenic ³⁶Cl buildup and rock varnish radiocarbon, we have measured the exposure age of rock surfaces at Meteor Crater, Arizona. Our ³⁶Cl measurements on four dolomite boulders ejected from the crater by the impact yield a mean age of 49.7 ± 0.85 ka, which is in excellent agreement with an average age of 49 ± 3 ka obtained from thermoluminescence studies on shock-metamorphosed dolomite and quartz. These ages are supported by undetectably low ¹⁴C in the oldest rock varnish sample.

Original language	English (US)
Pages (from-to)	2695-2698
Number of pages	4
Journal	Geochimica et Cosmochimica Acta
Volume	55
Issue number	9
DOIs	https://doi.org/10.1016/0016-7037(91)90387-K
State	Published - Sep 1991
Externally published	Yes

ASJC Scopus subject areas

Geochemistry and Petrology

Access to Document

10.1016/0016-7037(91)90387-K

Cite this

@article{f816ea9f4fe9452b8d2b9258c959302c,

title = "Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic 36Cl and 14C in rock varnish",

abstract = "Using cosmogenic 36Cl buildup and rock varnish radiocarbon, we have measured the exposure age of rock surfaces at Meteor Crater, Arizona. Our 36Cl measurements on four dolomite boulders ejected from the crater by the impact yield a mean age of 49.7 ± 0.85 ka, which is in excellent agreement with an average age of 49 ± 3 ka obtained from thermoluminescence studies on shock-metamorphosed dolomite and quartz. These ages are supported by undetectably low 14C in the oldest rock varnish sample.",

author = "Phillips, {Fred M.} and Zreda, {Marek G.} and Smith, {Stewart S.} and David Elmore and Kubik, {Peter W.} and Dorn, {Ronald I.} and Roddy, {David J.}",

note = "Funding Information: Acknowledgments-Thisw ork was supportedb y NSF grantsE AR-8603440S,E S-8901437a,n d PHY-8515908a ndb y a grantf rom the BarringeCr raterC ompanyf or radiocarbond atingt hatw asm atched by NSF grantE AR-8650704I. We thankD . Dorn and D. Tanner for field and laboratorya ssistancaen d M. Tamers,J. Stipp,a nd W. Wolfli for AMS 14Ca nalyses.",

year = "1991",

month = sep,

doi = "10.1016/0016-7037(91)90387-K",

language = "English (US)",

volume = "55",

pages = "2695--2698",

journal = "Geochimica et Cosmochimica Acta",

issn = "0016-7037",

publisher = "Elsevier Ltd",

number = "9",

}

TY - JOUR

T1 - Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic 36Cl and 14C in rock varnish

AU - Phillips, Fred M.

AU - Zreda, Marek G.

AU - Smith, Stewart S.

AU - Elmore, David

AU - Kubik, Peter W.

AU - Dorn, Ronald I.

AU - Roddy, David J.

N1 - Funding Information: Acknowledgments-Thisw ork was supportedb y NSF grantsE AR-8603440S,E S-8901437a,n d PHY-8515908a ndb y a grantf rom the BarringeCr raterC ompanyf or radiocarbond atingt hatw asm atched by NSF grantE AR-8650704I. We thankD . Dorn and D. Tanner for field and laboratorya ssistancaen d M. Tamers,J. Stipp,a nd W. Wolfli for AMS 14Ca nalyses.

PY - 1991/9

Y1 - 1991/9

N2 - Using cosmogenic 36Cl buildup and rock varnish radiocarbon, we have measured the exposure age of rock surfaces at Meteor Crater, Arizona. Our 36Cl measurements on four dolomite boulders ejected from the crater by the impact yield a mean age of 49.7 ± 0.85 ka, which is in excellent agreement with an average age of 49 ± 3 ka obtained from thermoluminescence studies on shock-metamorphosed dolomite and quartz. These ages are supported by undetectably low 14C in the oldest rock varnish sample.

AB - Using cosmogenic 36Cl buildup and rock varnish radiocarbon, we have measured the exposure age of rock surfaces at Meteor Crater, Arizona. Our 36Cl measurements on four dolomite boulders ejected from the crater by the impact yield a mean age of 49.7 ± 0.85 ka, which is in excellent agreement with an average age of 49 ± 3 ka obtained from thermoluminescence studies on shock-metamorphosed dolomite and quartz. These ages are supported by undetectably low 14C in the oldest rock varnish sample.

UR - http://www.scopus.com/inward/record.url?scp=0001354728&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0001354728&partnerID=8YFLogxK

U2 - 10.1016/0016-7037(91)90387-K

DO - 10.1016/0016-7037(91)90387-K

M3 - Article

AN - SCOPUS:0001354728

SN - 0016-7037

VL - 55

SP - 2695

EP - 2698

JO - Geochimica et Cosmochimica Acta

JF - Geochimica et Cosmochimica Acta

IS - 9

ER -

Age and geomorphic history of Meteor Crater, Arizona, from cosmogenic ³⁶Cl and ¹⁴C in rock varnish

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this