Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8123965 | International Journal of Coal Geology | 2015 | 22 Pages |
Abstract
The combined evidence from organic matter, clay minerals and fluid inclusions points to maximum paleotemperatures of ~ 100-230 °C in the Silurian-Devonian strata, and up to ~ 250 °C or even higher in the Ordovician strata. Apatite fission track analysis (AFTA) data suggests that maximum heating occurred between 340 and 380 Ma, i.e. during Variscan orogenic deformations. These paleotemperatures and the degree of diagenesis may have been produced by a post-Middle Devonian burial or tectonic load that was subsequently eroded, or by higher paleogeothermal gradients, or by a combination of both.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Economic Geology
Authors
Václav Suchý, Amir Sandler, Marek SlobodnÃk, Ivana Sýkorová, JiÅà Filip, Karel Melka, AntonÃn Zeman,