Methane Hydrates in Quaternary Climate Change: The Clathrate Gun Hypothesis

10.1029/054sp ◽  
2003 ◽  
Author(s):  
James P. Kennett ◽  
Kevin G. Cannariato ◽  
Ingrid L. Hendy ◽  
Richard J. Behl
Keyword(s):  
Climate Change ◽  
Methane Hydrates ◽  
Quaternary Climate

scholarly journals Methane Hydrates in Quaternary Climate Change: The Clathrate Gun Hypothesis

Eos ◽  
2002 ◽  
Vol 83 (45) ◽  
pp. 513
Author(s):  
Anonymous
Keyword(s):  
Climate Change ◽  
Methane Hydrates ◽  
Quaternary Climate

Oxygen isotopes in terrestrial gastropod shells track Quaternary climate change in the American Southwest

2021 ◽  
pp. 1-11
Author(s):  
Jason A. Rech ◽  
Jeffrey S. Pigati ◽  
Kathleen B. Springer ◽  
Stephanie Bosch ◽  
Jeffrey C. Nekola ◽  
...  
Keyword(s):  
Climate Change ◽  
Oxygen Isotopic Composition ◽  
American Southwest ◽  
Quaternary Climate ◽  
San Pedro ◽  
Spatial Coverage ◽  
Oxygen Isotopic ◽  
The Last Glacial Maximum ◽  
The Last Glacial ◽  
Terrestrial Gastropod

Abstract Recent studies have shown the oxygen isotopic composition (δ18O) of modern terrestrial gastropod shells is determined largely by the δ18O of precipitation. This implies that fossil shells could be used to reconstruct the δ18O of paleo-precipitation as long as the isotopic system, including the hydrologic pathways of the local watershed and the gastropod systematics, is well understood. In this study, we measured the δ18O values of 456 individual gastropod shells collected from paleowetland deposits in the San Pedro Valley, Arizona that range in age from ca. 29.1 to 9.8 ka. Isotopic differences of up to 2‰ were identified among the four taxa analyzed (Succineidae, Pupilla hebes, Gastrocopta tappaniana, and Vallonia gracilicosta), with Succineidae shells yielding the highest values and V. gracilicosta shells exhibiting the lowest values. We used these data to construct a composite isotopic record that incorporates these taxonomic offsets, and found shell δ18O values increased by ~4‰ between the last glacial maximum and early Holocene, which is similar to the magnitude, direction, and rate of isotopic change recorded by speleothems in the region. These results suggest the terrestrial gastropods analyzed here may be used as a proxy for past climate in a manner that is complementary to speleothems, but potentially with much greater spatial coverage.

Phylogeography of the mountain chickadee (Poecile gambeli): diversification, introgression, and expansion in response to Quaternary climate change

2007 ◽  
Vol 16 (5) ◽  
pp. 1055-1068 ◽  
Author(s):  
GARTH M. SPELLMAN ◽  
BRETT RIDDLE ◽  
JOHN KLICKA
Keyword(s):  
Climate Change ◽  
Quaternary Climate ◽  
Poecile Gambeli ◽  
Mountain Chickadee

scholarly journals Late Quaternary climate change in the north-eastern highlands of Ethiopia: A high resolution 15,600 year diatom and pigment record from Lake Hayk

2018 ◽  
Vol 202 ◽  
pp. 166-181 ◽  
Author(s):  
Katie L. Loakes ◽  
David B. Ryves ◽  
Henry F. Lamb ◽  
Frank Schäbitz ◽  
Michael Dee ◽  
...  
Keyword(s):  
Climate Change ◽  
High Resolution ◽  
Late Quaternary ◽  
The North ◽  
Quaternary Climate ◽  
North Eastern ◽  
Eastern Highlands

Iron mineralogical proxies and Quaternary climate change in SE-European loess–paleosol sequences

CATENA ◽  
2014 ◽  
Vol 117 ◽  
pp. 4-22 ◽  
Author(s):  
Björn Buggle ◽  
Ulrich Hambach ◽  
Karoly Müller ◽  
Ludwig Zöller ◽  
Slobodan B. Marković ◽  
...  
Keyword(s):  
Climate Change ◽  
Quaternary Climate
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