Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/S0169-555X(99)00031-8 |
The Lake Lahontan highstand: age, surficial characteristics, soil development, and regional shoreline correlation | |
Adams, KD; Wesnousky, SG | |
Corresponding Author | Adams, KD |
Journal | GEOMORPHOLOGY
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ISSN | 0169-555X |
Year Published | 1999 |
Volume | 30Issue:4Pages:357-392 |
Abstract in English | The Lake Lahontan basin has been the site of numerous pluvial lakes during the Pleistocene. We address the question of whether or not the highest remnant shoreline features around the perimeter of the lake were produced during the most recent Sehoo highstand (similar to 13 ka), the penultimate Eetza highstand (similar to 140-280 ka), or both. To do so, we document surficial characteristics, morphologic preservation, and soil development on multiple Sehoo beach barriers in the Jessup embayment to define the range in characteristics displayed by latest Pleistocene beach features. Sehoo barriers generally exhibit original constructional morphology that has been little modified by erosion. Soils developed on Sehoo barriers are generally thin and weakly developed and an strongly influenced by the introduction of eolian fines into the predominately clast-supported coarse beach gravels. Similar observations from 13 other highstand barriers and from seven older-than-latest Pleistocene paleosols located around the basin form the basis for a regional comparison. Based on similar characteristics, including the degree of morphologic preservation and weak soil development, we conclude that the widespread and nearly continuous high shoreline around the perimeter of Lake Lahontan dates from the most recent major lake cycle in all areas except in the Walker Lake subbasin. In the Walker Lake subbasin, isolated early to middle Pleistocene lacustrine outcrops and landforms are elevated as much as 70 m above the late Pleistocene limit, but are differentiated by their degraded form and lack of continuity around the subbasin. Similar unambiguous landforms were not observed elsewhere and at similar elevations in the northern subbasins of Lake Lahontan. (C) 1999 Elsevier Science B.V. All rights reserved. |
Keyword in English | Lake Lahontan highstand soil development shoreline correlation |
Subtype | Article |
Language | 英语 |
Country | USA |
Indexed By | SCI-E |
WOS ID | WOS:000084786700003 |
WOS Keyword | QUATERNARY CLIMATIC CHANGES ; CIMA VOLCANIC FIELD ; MOJAVE-DESERT ; CALIFORNIA ; NEVADA ; BASIN ; LACUSTRINE ; CARBONATES ; DEPOSITION ; RATES |
WOS Subject | Geography, Physical ; Geosciences, Multidisciplinary |
WOS Research Area | Physical Geography ; Geology |
Source Institution | Desert Research Institute |
Document Type | 期刊论文 |
Identifier | http://119.78.100.177/qdio/handle/2XILL650/137386 |
Affiliation | (1)Univ Nevada, Ctr Neotecton Studies, Reno, NV 89557 USA;(2)Univ Nevada, Dept Geol Sci, Reno, NV 89557 USA |
Recommended Citation GB/T 7714 | Adams, KD,Wesnousky, SG. The Lake Lahontan highstand: age, surficial characteristics, soil development, and regional shoreline correlation[J]. Desert Research Institute,1999,30(4):357-392. |
APA | Adams, KD,&Wesnousky, SG.(1999).The Lake Lahontan highstand: age, surficial characteristics, soil development, and regional shoreline correlation.GEOMORPHOLOGY,30(4),357-392. |
MLA | Adams, KD,et al."The Lake Lahontan highstand: age, surficial characteristics, soil development, and regional shoreline correlation".GEOMORPHOLOGY 30.4(1999):357-392. |
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