Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Leslie Keiser"'
Autor:
Leslie Keiser, William Hamill, Bryan Tapp, William Potter, Jerry McCoy, Peter LoPresti, Donna Farrior, Shirley Pomeranz
Publikováno v:
2006 Annual Conference & Exposition Proceedings.
Publikováno v:
Journal of Sedimentary Research. 85:1310-1322
SEM analysis of quartz microtextures has been shown to be useful for the study of depositional environments in Quaternary strata, and more recently has been applied to ancient strata. Certain microtextures such as curved grooves, straight grooves, de
Publikováno v:
Journal of Sedimentary Research. 84:893-896
To assess the effects of drying on subsequent grain-size analyses, a variety of drying approaches, including drying in ambient air, oven drying, and freeze drying, were applied to sediment collected from modern fluvial, lacustrine, and paludal settin
Autor:
Christopher C. R. Allen, Leslie Keiser, David H. Krinsley, William C. Mahaney, Pedro Costa, Allen West, Randy W. Dirszowsky
Publikováno v:
Geografiska Annaler: Series A, Physical Geography. 96:99-111
Recent analyses of sediment samples from “black mat” sites in outh merica and urope support previous interpretations of an impact event that reversed the Late Glacial demise of ice during the Bolli...
Publikováno v:
Geomorphology. 206:483-491
Sediment grain size and surface area impose critical controls on the rates of chemical weathering, even in cold-based (i.e., polar) glacial systems, where extensive chemical weathering traditionally has been considered minimal owing to low temperatur
Autor:
Leslie Keiser, Allen West, Prasanna Pentlavalli, William C. Mahaney, Peeter Somelar, Christopher C. R. Allen, D. H. Krinsley, Pedro Costa, James M. Dohm, Stéphane Schwartz, Randy W. Dirszowsky, P. Julig
Publikováno v:
Journal of the Geological Society. 170:833-847
Weathering rinds have been used for decades as relative age indicators to differentiate glacial deposits in long Quaternary sequences, but only recently has it been shown that rinds contain long and extensive palaeoenvironmental records that often ex
New Evidence from a Black Mat Site in the Northern Andes Supporting a Cosmic Impact 12,800 Years Ago
Publikováno v:
The Journal of Geology. 121:309-325
Previous work has ascribed a cosmic impact origin to black, high-temperature, carbon-encrusted beds (2–3 cm thick), associated with the Younger Dryas readvance of ice at 12.8 ka during the Late Glacial in the northern Andes of Venezuela. The eviden
Autor:
Leslie Keiser, A.R. Stumpf, Brenda L. Hall, M. E. Elwood Madden, Gerilyn S. Soreghan, Kristen R. Marra
Publikováno v:
Chemical Geology. :79-90
article This study examines stream chemistry within glacial drainages in Wright and Taylor Valley Antarctica in con- junction with geochemical modeling and sediment leach experiments in order to assess the source of chem- ical weathering fluxes withi
Publikováno v:
All Days.
This paper presents the success story of an integrated approach to optimize the production performance of the Goldsmith Andector Unit (Gandu) in West Texas. All production is from the Clearfork formation, a typical carbonate reservoir characterized b
Autor:
Jerome McCoy, Leslie Keiser, Michael Kessler, William Potter, Peter LoPresti, Donna Farrior, Shirley Pomeranz
Publikováno v:
Scopus-Elsevier
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::adbb9693bb6cdc2bb1d40a1701c55ede
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