منابع مشابه
Bottom Sediments of Lake Nicaragua and Lake Managua, Western Nicaragua
Lakes Nicaragua and Managua are large, rather shallow, fresh-water bodies that lie in a late Tertiary and Quaternary graben in western Nicaragua. The bottom sediments comprise highly organic diatomaceous volcanic silts and clays in which quartz plagioclase feldspar, dioctahedral montmorillonite and volcanic glass are the principal constituents. ' Organic nitrogen content of the lake sediments r...
متن کاملPalynological study of Lake Kotokel’ bottom sediments (Lake Baikal region)
Pollen and AMSC analyses of bottom sediments from the upper nine meters of the Lake Kotokel’ section were carried out. The regional climate and landscape dynamics during the Late Glacial and Holocene has been reconstructed with an average time resolution of ~120 years. It is shown that the climatic conditions in the Kotokel’ basin during Termination I (~15.5–11 ka) were characterized by short d...
متن کاملEstimating phytolith influx in lake sediments
a Centre for Bio-Archaeology and Ecology (UMR5059, CNRS/Université Montpellier 2/EPHE), Institut de Botanique, 163 rue Broussonet, F-34090 Montpellier, France b Paleoenvironments and Chronoecology (PALECO), Ecole Pratique des Hautes Etudes (EPHE), Institut de Botanique, 163 rue Broussonet, F-34090 Montpellier, France c UR Biens et services des écosystèmes forestiers tropicaux (CIRAD), Montpelli...
متن کاملDeciphering climatic history from lake sediments
Reconstructing climate from lake sediments can be challenging, because the response of lakes and various components of lake systems are mediated by non-climatic factors, such as geomorphic and hydrologic stetting. As a result, the magnitude of lake response to climatic forcing may be non-linear. In addition, changes in the lake system associated with the aging process or non-climatic influences...
متن کاملSeasonal signals in Lake Malawi sediments
The sedimentary record of Lake Malawi, one of the large rift valley lakes of east Africa, contains thick sequences of biologically undisturbed, finely laminated muds and silts. Laminated sequences were recovered in cores from the extensive diatom ooze and silty diatom clay facies of the lake basin that is permanently anoxic below 250 m. The sequences consist of light-dark laminae couplets with ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Pure and Applied Chemistry
سال: 1997
ISSN: 1365-3075,0033-4545
DOI: 10.1351/pac199769010071