Isotopic evidence for climatic influence on alluvial-fan development in Death Valley, California

Ronald I. Dorn; M. J. DeNiro; H. O. Ajie

doi:10.1130/0091-7613(1987)15<108:IEFCIO>2.0.CO;2

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Research Article| February 01, 1987

Isotopic evidence for climatic influence on alluvial-fan development in Death Valley, California

Ronald I. Dorn;

Ronald I. Dorn

1

Department of Geography, Texas Tech University, Lubbock, Texas 79409

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M. J. DeNiro;

M. J. DeNiro

2

Department of Earth and Space Sciences and Archaeology Program, University of California, Los Angeles, California 90024

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H. O. Ajie

2

Department of Earth and Space Sciences and Archaeology Program, University of California, Los Angeles, California 90024

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Author and Article Information

Ronald I. Dorn

1

Department of Geography, Texas Tech University, Lubbock, Texas 79409

M. J. DeNiro

2

Department of Earth and Space Sciences and Archaeology Program, University of California, Los Angeles, California 90024

H. O. Ajie

2

Department of Earth and Space Sciences and Archaeology Program, University of California, Los Angeles, California 90024

Publisher: Geological Society of America

First Online: 02 Jun 2017

Online ISSN: 1943-2682

Print ISSN: 0091-7613

Geological Society of America

Geology (1987) 15 (2): 108–110.

https://doi.org/10.1130/0091-7613(1987)15<108:IEFCIO>2.0.CO;2

Abstract

At least three semiarid to arid cycles are recorded by δ¹³C values of organic matter in layers of rock varnishes on surfaces of Hanaupah Canyon and Johnson Canyon alluvial fans, Death Valley, California. These isotopic paleoenvironmental signals are interpreted as indicating major periods of fan aggradation during relatively more humid periods and fan entrenchment during subsequent lengthy arid periods.

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