An abrupt C perturbation and global warming event during the Late Carboniferous paleo-glacial state (https://t.co/4mx0veR0S5). Is it the analog of the current global warming?
For anyone else in need of something cheerful this #IWD, here is a pretty rock.
~250 million y old, deposited in abandoned river channel/floodplain lake, thin stripes are coarser grains flowing in during floods, pebble is a dropstone (it was icy!). Toolachee Fmn, Cooper Basin.
There are numerous palaeomag holes on the Meishan sections, but no results were published before because the paleomag signals are very weak. See https://t.co/PjGtIbyv2U
A new, high-resolution Permian 87Sr/86Sr curve derived from pristine brachiopod shells is available (https://t.co/i9TbrPKIKw). A stochastic oceanic box model supports that, changes in the hydrothermal input are the most likely controlling factor.
Mg isotope changes across the Permian-Triassic boundary suggest that the Paleotethys Ocean experienced extremely restricted condition in association with the end-Permian mass extinction. https://t.co/w69HYlhHTS