Results 31 to 40 of about 1,022,516 (264)

Simple Stochastic Modeling of Snowball Probability Throughout Earth History

open access: yesGeochemistry, Geophysics, Geosystems, 2022
Over its multibillion‐year history, Earth has exhibited a wide range of climates. Its history ranges from snowball episodes where the surface was mostly or entirely covered by ice to periods much warmer than today, where the cryosphere was virtually ...
Mark Baum, Minmin Fu
doaj   +1 more source

Amplified cooling of Snowball Earth from a salt-albedo feedback [PDF]

open access: yesClimate of the Past
It is believed that the atmospheric circulation on Snowball Earth produced a net ablation zone exposing bare sea ice. Under sufficiently low temperatures, salt begins to precipitate out of sea ice, forming a lag deposit of crystals with high albedo as ...
A. Samuelsberg   +2 more
doaj   +1 more source

The Application of the CERIF Data Format to Snowball Metrics [PDF]

open access: yes, 2014
The euroCRIS Indicators Task Group aims to develop and share best practice in the use of indicators to support research information management. One of the outputs of the group will be indicators expressed in CERIF that can re-used by CERIF- compliant ...
Joerg, Brigitte   +13 more
core   +1 more source

When the Earth goes white: the Snowball Earth attractor [PDF]

open access: yes, 2022
Using an intermediate complexity climate model we investigate the so-called snowball Earth transition. For certain values (including its current value) of the solar constant, the climate system allows two different stable states: one of them is the ...
Kaszás, Bálint   +2 more
core   +1 more source

Sensitivity of Neoproterozoic snowball-Earth inceptions to continental configuration, orbital geometry, and volcanism [PDF]

open access: yesClimate of the Past, 2023
The Cryogenian period (720–635 million years ago) in the Neoproterozoic era featured two phases of global or near-global ice cover termed “snowball Earth”.
J. Eberhard   +6 more
doaj   +1 more source

Sea-ice dynamics strongly promote Snowball Earth initiation and destabilize tropical sea-ice margins [PDF]

open access: yesClimate of the Past, 2012
The Snowball Earth bifurcation, or runaway ice-albedo feedback, is defined for particular boundary conditions by a critical CO<sub>2</sub> and a critical sea-ice cover (SI), both of which are essential for evaluating hypotheses related to ...
A. Voigt, D. S. Abbot
doaj   +1 more source

Snowball Earth Under the Microscope [PDF]

open access: yesJournal of Sedimentary Research, 2018
Abstract Micromorphology is a well-established technique adopted by Quaternary scientists which has received wide application in the study of glacial sediments and in soil science. One area where the approach is far less developed is in the analysis of ancient successions and, in particular, rocks of Cryogenian age that are purported ...
Busfield, Marie Elen   +1 more
openaire   +2 more sources

The Location and Styles of Ice-Free “Oases” during Neoproterozoic Glaciations with Evolutionary Implications

open access: yesGeosciences, 2012
Evidence based on molecular clocks, together with molecular evidence/biomarkers and putative body fossils, points to major evolutionary events prior to and during the intense Cryogenian and Ediacaran glaciations. The glaciations themselves were of global
Daniel Paul Le Heron
doaj   +1 more source

Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, Estonia [PDF]

open access: yes, 2015
The Estonian Journal of Earth Sciences is an open access journal and applies the Creative Commons Attribution 4.0 International License CC BY to all its papers (http://creativecommons.org/licenses/by/4.0/).
Alberto Pérez-Huerta   +13 more
core   +2 more sources

Transient marine euxinia at the end of the terminal Cryogenian glaciation

open access: yesNature Communications, 2018
The termination of the Marinoan snowball Earth event marks one of the most drastic transitions in Earth history, but the oceanic response remains unclear.
Xianguo Lang   +11 more
doaj   +1 more source

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