Results 31 to 40 of about 382,625 (288)

Sea surface temperature changes in the southern California borderlands during the last glacial-interglacial cycle [PDF]

open access: yes, 1996
A variety of evidence suggests that average sea surface temperatures (SSTs) during the last glacial maximum in the California Borderlands region were significantly colder than during the Holocene.
P. Graham Mortyn   +9 more
core   +1 more source

Millennial climatic fluctuations are key to the structure of last glacial ecosystems [PDF]

open access: yes, 2013
Whereas fossil evidence indicates extensive treeless vegetation and diverse grazing megafauna in Europe and northern Asia during the last glacial, experiments combining vegetation models and climate models have to-date simulated widespread persistence of
Huntley Brian   +32 more
core   +1 more source

Quaternary chronostratigraphy - a review [PDF]

open access: yesBulletin of the Geological Society of Finland, 1992
Quaternary development is characterized by strong climatic fluctuations associated with repeated glacier expansions. Consequently the Quaternary chronostratigraphy is largely based on the dating of climatic fluctuations which have led to large-scale ...
M. Eronen
doaj   +1 more source

An Assessment of Geophysical Survey Techniques for Characterising the Subsurface Around Glacier Margins, and Recommendations for Future Applications

open access: yesFrontiers in Earth Science, 2022
Geophysical surveys provide an efficient and non-invasive means of studying subsurface conditions in numerous sedimentary settings. In this study, we explore the application of three geophysical methods to a proglacial environment, namely ground ...
Hannah Watts   +12 more
doaj   +1 more source

Exploring beneath the retreating ice: swath bathymetry reveals sub- to proglacial processes and longevity of future alpine glacial lakes

open access: yesAnnals of Glaciology
Knowledge of how glaciations formed landscapes is particularly important as receding glaciers currently uncover subglacial landscapes that are prone to a series of natural hazards, but that also bring opportunities for hydropower or water resources.
Siro L. Hosmann   +5 more
doaj   +1 more source

Weichselian stratigraphy, geomorphology and glacial dynamics in southern Finnish Lapland [PDF]

open access: yesBulletin of the Geological Society of Finland, 2005
Quaternary stratigraphy and geomorphology were investigated by using aerial photo interpretation, digital elevation models and stratigraphical studies in southern Finnish Lapland.
P. Sarala
doaj   +1 more source

Changes in fire regimes since the last glacial maximum: an assessment based on a global synthesis and analysis of charcoal data [PDF]

open access: yes, 2007
Fire activity has varied globally and continuously since the last glacial maximum (LGM) in response to long-term changes in global climate and shorter-term regional changes in climate, vegetation, and human land use.
Prentice, I. C.   +326 more
core   +2 more sources

Climatic Conditions in the Central Part of the Kashmir Valley During the Pleistocene–Holocene Transition: Insights from Lithostratigraphy, Geochemical Analyses, and Radiocarbon Chronology of Palaeosol Sequences

open access: yesAtmosphere
The Kashmir Valley, characterized by its rich loess–palaeosol sequences (LPSs), provides a unique geo-archive for reconstructing Late Quaternary climate dynamics.
Rayees Ahmad Shah   +3 more
doaj   +1 more source

Fallacy of paleoproductivity signals by the recycled biogenic components: case study in the Central Basin of the northwestern Ross Sea

open access: yesGeoscience Letters
Core LC42, retrieved from the Central Basin of the northwestern Ross Sea, contains three distinct sediment facies (IRD (ice-rafted debris)-poor bioturbated sandy mud, IRD-rich massive sandy mud, and laminated mud) that are interleaved with each other and
Boo-Keun Khim   +5 more
doaj   +1 more source

Development and Comparison of 3D Seismic Geology and Shear-wave Velocity Models of Metro Vancouver

open access: yesSeismica
This study presents a 3D regional modeling of seismic geology and shear wave velocity (Vs) in Metro Vancouver for seismic microzonation and hazard prediction.
Sujan Adhikari, Sheri Molnar
doaj   +1 more source

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