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Title: Sources and distribution of organic and carbonate carbon in surface sediments of Pyramid Lake, Nevada

Abstract

Surface sediment samples from 32 sites in Pyramid Lake, Nevada, have been studied to investigate the sources and distribution of carbon within a large, terminal lake basin. The origins of organic and inorganic carbon in the sediments of this lake are predominantly from in-lake sources. Dilution of these sedimentary materials by land-derived clastic components occurs near the mouth of the Truckee River, the only perennial river entering the lake. Total organic carbon (TOC) concentrations and CaCO{sub 3} concentrations and {delta}{sup 18}O values increase while organic matter C/N atomic ratios and {delta}{sup 13}C values decrease with increasing distance from the river mouth as the proportion of river-derived components decreases. Aragonite precipitates from lake water and dominates CaCO{sub 3} deposition in most parts of the lake, except near underlake springs, where calcite precipitates. TOC concentrations increase as water depth increases, reflecting grain sorting as smaller particles are resuspended and focused toward the deep basin center.

Authors:
; ;  [1]
  1. Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Geological Sciences
Publication Date:
OSTI Identifier:
556753
Resource Type:
Journal Article
Journal Name:
Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes
Additional Journal Information:
Journal Volume: 67; Journal Issue: 5; Other Information: PBD: Sep 1997
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; LAKES; SOIL CHEMISTRY; CARBON SOURCES; NEVADA; SEDIMENTS; ORGANIC MATTER; CALCIUM CARBONATES; RIVERS; LIMNOLOGY; GEOLOGIC HISTORY

Citation Formats

Tenzer, G E, Meyers, P A, and Knoop, P. Sources and distribution of organic and carbonate carbon in surface sediments of Pyramid Lake, Nevada. United States: N. p., 1997. Web.
Tenzer, G E, Meyers, P A, & Knoop, P. Sources and distribution of organic and carbonate carbon in surface sediments of Pyramid Lake, Nevada. United States.
Tenzer, G E, Meyers, P A, and Knoop, P. 1997. "Sources and distribution of organic and carbonate carbon in surface sediments of Pyramid Lake, Nevada". United States.
@article{osti_556753,
title = {Sources and distribution of organic and carbonate carbon in surface sediments of Pyramid Lake, Nevada},
author = {Tenzer, G E and Meyers, P A and Knoop, P},
abstractNote = {Surface sediment samples from 32 sites in Pyramid Lake, Nevada, have been studied to investigate the sources and distribution of carbon within a large, terminal lake basin. The origins of organic and inorganic carbon in the sediments of this lake are predominantly from in-lake sources. Dilution of these sedimentary materials by land-derived clastic components occurs near the mouth of the Truckee River, the only perennial river entering the lake. Total organic carbon (TOC) concentrations and CaCO{sub 3} concentrations and {delta}{sup 18}O values increase while organic matter C/N atomic ratios and {delta}{sup 13}C values decrease with increasing distance from the river mouth as the proportion of river-derived components decreases. Aragonite precipitates from lake water and dominates CaCO{sub 3} deposition in most parts of the lake, except near underlake springs, where calcite precipitates. TOC concentrations increase as water depth increases, reflecting grain sorting as smaller particles are resuspended and focused toward the deep basin center.},
doi = {},
url = {https://www.osti.gov/biblio/556753}, journal = {Journal of Sedimentary Research, Section A: Sedimentary Petrology and Processes},
number = 5,
volume = 67,
place = {United States},
year = {Mon Sep 01 00:00:00 EDT 1997},
month = {Mon Sep 01 00:00:00 EDT 1997}
}