Lake sediments as natural seismographs: A compiled record of Late Quaternary earthquakes in Central Switzerland and its implication for Alpine deformation

Sedimentology ◽  
2013 ◽  
Vol 60 (1) ◽  
pp. 319-341 ◽  
Author(s):  
Michael Strasser ◽  
Katrin Monecke ◽  
Michael Schnellmann ◽  
Flavio S. Anselmetti
Keyword(s):  
Lake Sediments ◽  
Late Quaternary ◽  
Central Switzerland

scholarly journals Late Quaternary environmental and climatic changes in central Europe as inferred from the composition of organic matter in annually laminated maar lake sediments

2004 ◽  
Vol 5 (11) ◽  
pp. n/a-n/a ◽  
Author(s):  
Andreas Fuhrmann ◽  
Thomas Fischer ◽  
Andreas Lücke ◽  
Achim Brauer ◽  
Bernd Zolitschka ◽  
...  
Keyword(s):  
Organic Matter ◽  
Lake Sediments ◽  
Central Europe ◽  
Late Quaternary ◽  
Climatic Changes ◽  
Maar Lake

scholarly journals A late Quaternary record of eolian silt deposition in a maar lake, St. Michael Island, western Alaska

2003 ◽  
Vol 60 (1) ◽  
pp. 110-122 ◽  
Author(s):  
Daniel R. Muhs ◽  
Thomas A. Ager ◽  
Josh Been ◽  
J. Platt Bradbury ◽  
Walter E. Dean
Keyword(s):  
Lake Sediments ◽  
Late Quaternary ◽  
Geochemical Data ◽  
Unexpected Finding ◽  
The Holocene ◽  
Tundra Vegetation ◽  
Shrub Tundra ◽  
Loess Deposition ◽  
Maar Lake ◽  
Glacial Time

AbstractRecent stratigraphic studies in central Alaska have yielded the unexpected finding that there is little evidence for full-glacial (late Wisconsin) loess deposition. Because the loess record of western Alaska is poorly exposed and not well known, we analyzed a core from Zagoskin Lake, a maar lake on St. Michael Island, to determine if a full-glacial eolian record could be found in that region. Particle size and geochemical data indicate that the mineral fraction of the lake sediments is not derived from the local basalt and is probably eolian. Silt deposition took place from at least the latter part of the mid-Wisconsin interstadial period through the Holocene, based on radiocarbon dating. Based on the locations of likely loess sources, eolian silt in western Alaska was probably deflated by northeasterly winds from glaciofluvial sediments. If last-glacial winds that deposited loess were indeed from the northeast, this reconstruction is in conflict with a model-derived reconstruction of paleowinds in Alaska. Mass accumulation rates in Zagoskin Lake were higher during the Pleistocene than during the Holocene. In addition, more eolian sediment is recorded in the lake sediments than as loess on the adjacent landscape. The thinner loess record on land may be due to the sparse, herb tundra vegetation that dominated the landscape in full-glacial time. Herb tundra would have been an inefficient loess trap compared to forest or even shrub tundra due to its low roughness height. The lack of abundant, full-glacial, eolian silt deposition in the loess stratigraphic record of central Alaska may be due, therefore, to a mimimal ability of the landscape to trap loess, rather than a lack of available eolian sediment.

Chronostratigraphy and lake-level changes of Laguna Cari-Laufquén, Río Negro, Argentina

2011 ◽  
Vol 76 (3) ◽  
pp. 430-440 ◽  
Author(s):  
Alyson Cartwright ◽  
Jay Quade ◽  
Scott Stine ◽  
Kenneth D. Adams ◽  
Wallace Broecker ◽  
...  
Keyword(s):  
South America ◽  
Lake Sediments ◽  
High Latitude ◽  
Lake Level ◽  
Late Quaternary ◽  
Deep Lake ◽  
Common Cause ◽  
Rio Negro ◽  
Temperature Depression ◽  
Lake Record

AbstractEvidence from shoreline and deep-lake sediments show Laguna Cari-Laufquén, located at 41°S in central Argentina, rose and fell repeatedly during the late Quaternary. Our results show that a deep (> 38 m above modern lake level) lake persisted from no later than 28 ka to 19 ka, with the deepest lake phase from 27 to 22 ka. No evidence of highstands is found after 19 ka until the lake rose briefly in the last millennia to 12 m above the modern lake, before regressing to present levels. Laguna Cari-Laufquén broadly matches other regional records in showing last glacial maximum (LGM) highstands, but contrasts with sub-tropical lake records in South America where the hydrologic maximum occurred during deglaciation (17–10 ka). Our lake record from Cari-Laufquén mimics that of high-latitude records from the Northern Hemisphere. This points to a common cause for lake expansions, likely involving some combination of temperature depression and intensification of storminess in the westerlies belt of both hemispheres during the LGM.

Chronologies of Late Quaternary Coral Reefs and Lake Sediments from the Red Sea and Dead Sea Rift Valley

2017 ◽  
pp. 75-82 ◽  
Author(s):  
Mordechai Stein ◽  
Boaz Lazar ◽  
Adi Torfstein ◽  
Steven L. Goldstein
Keyword(s):  
Coral Reefs ◽  
Lake Sediments ◽  
Red Sea ◽  
Rift Valley ◽  
Late Quaternary ◽  
Dead Sea

A LATE-QUATERNARY RECORD OF TERRESTRIAL AND AQUATIC ECOSYSTEM VARIABILITY DEVELOPED USING MULTI-PROXY ANALYSIS OF NORTHEAST PENNSYLVANIA LAKE SEDIMENTS

2020 ◽  
Author(s):  
Angus Fortune ◽  
◽  
Michael Delpais ◽  
Matthew S. Finkenbinder ◽  
Alistair Monteath ◽  
...  
Keyword(s):  
Lake Sediments ◽  
Aquatic Ecosystem ◽  
Late Quaternary
Sign in / Sign up

Export Citation Format

Share Document