1994 . Permian climates of the southern margins of Pangea: evidence from fossil wood in Antarctica. In Embry, A. F., B. Beauchamp, and D. J. Glass, editors. eds. Pangea: Global Environments and Resources. Calgary, Alberta Canadian Society of Petroleum Geologists . pp. 275 – 282 . (...
has been widely attributed to eruptions of the Siberian Traps Large Igneous Province, although evidence of a direct link has been scant to date. Here, we measure mercury (Hg), assumed to reflect shifts in volcanic activity, across the Permian-Triassic boundary in ten marine sections across the ...
Palaeogeography, Palaeoclimatology, Palaeoecology 184, 37-63.Growth and demise of Permianbiogenic chert along northwest Pangea:Evidence for end-Permiancollapse ... B Beauchamp,A Baud - 《Palaeogeography Palaeoclimatology Palaeoecology》 被引量: 326发表: 2002年 Terrestrial–marine teleconnections in the coll...
The earth alternates in a supercycle 400 m.y. long from a single continent (Pangea) and ocean (Panthalassa) with an icehouse climate to many continents and... JJ Veevers - 《Sedimentary Geology》 被引量: 115发表: 1990年 Blake Nose stable isotopic evidence against the mid-Cenomanian glaciati...
The late Famennian interval was a time of intensive volcanic activity, which led to significant changes in the global climate and biosphere, and is widely thought to have caused the extinction event known as the Hangenberg Crisis4,5,6,7. Recently, the volcanic control on this biotic overturn ...
Mercury has been used in T–J transitional research to track mantle-derived volcanic inputs to continental as well as shallow- to intermediate-depth marine sections proximal to the Pangean supercontinent11,14,17,18,19,26,27(Fig.1). Near-zero Δ199Hg values in association with Hg enrichments...
The theory of continental drift arose from Alfred Wegener back in 1912, who was the key theorist in such hypothesis. Wegener estimated that one large piece of land, also described as a single supercontinent, existed; he called this Pangea. He later postulated that Pangea broke apart into smalle...
Climate change - Evidence, Causes, Impacts: All historical sciences share a problem: As they probe farther back in time, they become more reliant on fragmentary and indirect evidence. Earth system history is no exception. High-quality instrumental record
We use a combination of palynology, organic carbon isotopes (δ13Corg), total organic content (TOC), kerogen macerals, and sedimentary Hg concentrations to evaluate the link between volcanism and contemporaneous changes in the terrestrial environment, climate, and flora during the Middle Jurassic. 2...
AAPG Memoir 75, Chapter 1: Mexico as the Western Margin of Pangea Based on Biogeographic Evidence from the Permian to the Lower Jurassic In this paper, ammonite biostratigraphy and biogeography are used as the basis for an investigation of the origin of the Gulf of Mexico. Three key observat....