Results 91 to 100 of about 1,713,391 (291)

Changes in the Baltic Sea levels during the Late Pleistocene the Late Pleistocene-Holocene transition

open access: yesLimnology and Freshwater Biology
The article discusses the Pre-Baltic Sea history during the Late Pleistocene and Holocene periods. Despite a long history of research on this topic, there are still gaps in our knowledge that prevent us from creating an accurate and comprehensive paleo geographic reconstruction of the region during this time period. A table that provides information on
Yu.A. Kublitskiy   +3 more
openaire   +1 more source

Dental enamel hypoplasia and intra‐tooth isotope records as indicators of physiological stress and environmental variability in Early Pleistocene hippopotamids from Melka Kunture (Upper Awash, Ethiopia)

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Enamel hypoplasia results from temporary disruptions of enamel deposition during tooth development. It is widely used as an indicator of physiological stress in archeological and paleontological contexts; yet, its relationship with environmental conditions during tooth formation remains poorly constrained.
Giuseppe Briatico   +3 more
wiley   +1 more source

New Schmidt hammer exposure‐age dating calibrations for the Last Glacial Termination in NW Scotland: Development and application to undated Torridon Group sandstone surfaces in Wester Ross

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT An understanding of the terrestrial extent, retreat dynamics and climate–glacier coupling of ice masses during the Last Glacial Termination (LGT, ~18–11 ka) is often limited by a fragmentary geomorphological record and is dependent on precise, accurate and robust dating frameworks.
Alastair M. Curry   +3 more
wiley   +1 more source

BIOCHRONOLOGY OF SELECTED MAMMALS, MOLLUSCS AND OSTRACODS FROM THE MIDDLE PLIOCENE TO THE LATE PLEISTOCENE IN ITALY. THE STATE OF THE ART

open access: yesRivista Italiana di Paleontologia e Stratigrafia, 1997
The Authors have elaborated four range charts of mammalian (large and micro), molluscs and fresh-water and brackish ostracodes faunas, for the selected Plio-Pleistocene fossiliferous localities of the Italy.
E. GLIOZZI   +20 more
doaj   +1 more source

Responses of primary producers, anoxia, and chemical feedback to Late Glacial climate change: Insights from a paired lake approach

open access: yesJournal of Quaternary Science, EarlyView.
Abstract Worldwide, lacustrine ecosystems are threatened by eutrophication and deoxygenation. Both processes are driven by the combined effects of human activities and climate change. Understanding the pre‐anthropogenic nexus between warming, eutrophication, deoxygenation, and related feedback is essential to determine how lakes respond to rapid ...
Noé R.M.M. Schmidhauser   +7 more
wiley   +1 more source

Eccentricity Paces Late Pleistocene Glaciations

open access: yesGeophysical Research Letters
Late Pleistocene glacial terminations are caused by rising atmospheric CO2 occurring in response to atmospheric and ocean circulation changes induced by increased discharge from Northern Hemisphere ice sheets.
T. Blackburn, S. Kodama, G. Piccione
doaj   +1 more source

Sediment distribution and provenance since Late Pleistocene in Laizhou Bay, Bohai Sea, China

open access: yesChina Geology, 2019
: There are three transgression-regression events and evolutions of the sedimentary environment by sea level changes since the Pleistocene in the southern section of the Bohai Sea, China. It is obvious that a multi-source fluvial delta sedimentary system
Mao-sheng Gao   +3 more
doaj   +1 more source

Ngarrawa (mound spring) sediments as archives of Holocene environmental change in arid central Australia: Insights from Itrax XRF scanning

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Central Australia's ngarrawa, or ‘mound springs’, are unique hydrological systems that serve as some of the only near‐permanent sources of water and continuous sediment deposition in Australia's arid interior. As such, they hold significant potential as palaeo‐climate and ‐environmental archives in a region where many aspects of past climate ...
Fletcher C. Nixon   +3 more
wiley   +1 more source

Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia

open access: yesJournal of Quaternary Science, EarlyView.
ABSTRACT Tectonic processes play a key role in the global mercury (Hg) cycle on geological timescales, by mobilising Hg from deep Earth reservoirs to the surface. These natural fluxes also introduce a dynamic component to the terrestrial Hg cycle that can interact with other environmental signals and influence Hg delivery to sedimentary records.
Alice R. Paine   +7 more
wiley   +1 more source

A tanged point and two blade technologies from Rubha Port an t-Seilich, Isle of Islay, western Scotland

open access: yesJournal of Lithic Studies, 2019
We describe a tanged point and a blade technology from Rubha Port an t-Seilich, Isle of Islay, Scotland that provides further support to a Late Pleistocene or Early Holocene presence in Scotland prior to the establishment of the narrow blade Mesolithic ...
Inger Marie Berg-Hansen   +2 more
doaj   +1 more source

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