DRAINAGE DEVELOPMENT ON BASALTIC LAVA FLOWS, CIMA VOLCANIC FIELD, SOUTHEAST CALIFORNIA, AND LUNAR CRATER VOLCANIC FIELD, SOUTH-CENTRAL NEVADA.

John C. Dohrenwend, Athol D. Abrahams, Brent D. Turrin

Research output: Contribution to journalArticlepeer-review

20 Scopus citations

Abstract

Drainage networks on the accretionary eolian mantles of 11 K-Ar-dated lava flows in Cima volcanic field and 8 K-Ar-dated flows in the Lunar Crater volcanic field show several related and progressive changes with flow age. After accumulation of an eolian mantle (requiring 0. 1 to 0. 2 m. y. ), master drainages extend to all parts of a flow. During this period of elongation, which lasts for minus 0. 2 to 0. 3 m. y. , drainage density (D) and link, frequency (F) increase rapidly whereas the value of Shreve's kappa ( kappa ) declines. After minus 0. 4 m. y. , elaboration replaces elongation as the principal mode of network extension and remains predominant throughout the remainder of the 1. 1-m. y. period of record. Elaboration proceeds mainly by the formation of short tributaries along existing streams and by the creation of short streams along flow margins.

Original languageEnglish (US)
Pages (from-to)405-413
Number of pages9
JournalBulletin of the Geological Society of America
Volume99
Issue number3
DOIs
StatePublished - 1987
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Geology

Fingerprint

Dive into the research topics of 'DRAINAGE DEVELOPMENT ON BASALTIC LAVA FLOWS, CIMA VOLCANIC FIELD, SOUTHEAST CALIFORNIA, AND LUNAR CRATER VOLCANIC FIELD, SOUTH-CENTRAL NEVADA.'. Together they form a unique fingerprint.

Cite this