Results 101 to 110 of about 5,076 (307)
Journal 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
, 2019 An editor of Paleoceanography and Paleoclimatology shares fond memories of his postdoc with Wally Broecker, who died in ...
Barker, Stephen
core +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Volcanic ash (tephra) provides an important chronostratigraphic framework for correlating Quaternary records. In ultra‐distal ( > $\gt $1500 km) settings such as ice cores and marine sediments, deposits are typically preserved as cryptotephra composed of glass shards ≤ 20 μ $\le 20\,\mu
Celeste Smith +6 more
wiley +1 more source
Mercury cycling during the last glacial period in Arctic Lake El'gygytgyn, NE Russia
Journal 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
Paleo-humidity changes in a tropical Aptian continental to transitional system: a case study from the Araripe Basin, Northeastern Brazil [PDF]
Brazilian Journal of GeologyAlthough many paleogeographic reconstructions depict equatorial Brazil as being predominantly arid during the Aptian, studies using palynomorphs suggest climatic fluctuations between humid and arid phases.
Marcos Antonio Batista dos Santos Filho +10 more
doaj +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT The Fiorano quarry paleosol developed within the Colli Albani volcanic district (Italy) in the time interval bracketed by the deposition of the Pozzolanelle pyroclastic‐flow unit (365 ± 4 ka) and the emplacement of the Capo di Bove lava flow (277 ± 2 ka).
Eduardo Di Marcantonio +4 more
wiley +1 more source
Hesperia: A Multidisciplinary Group-oriented Information System for Paleoclimatology
, 2008 — HESPERIA is an information system for helping in the collaborative research of a multidisciplinary group in the paleoclimatology field. While there exist international databases and information systems that provide long term storage of georeferenced ...
M. Vaquero, R. Theron
core
Journal of Quaternary Science, EarlyView.ABSTRACT In this study, we report the first documented occurrence of the Icelandic Vedde Ash (VA) in the Bohemian Forest, identified within palaeolake sediments from Stará Jímka, Czechia, representing the first Icelandic tephra layer identified in Czechia.
Verena Meier +3 more
wiley +1 more source
National Oceanic and Atmospheric Administration: Paleoclimatology Program
Paleo data come from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments - and extend the archive of weather and climate back hundreds to millions of years.
core
Exploring Paleoclimatology in the Classroom
, 2009 This guide provides instructions for educators on how to access and use coral radioisotope data for classroom activities. The data consist of Sr/Ca ratios and Sea Surface Temperatures (SST) for coral samples near Rarotonga Island in the South Specific ...
core