In this country, in Devonshire and Cornwall, the occurrence of radiolarian cherts, both of Ordovician and Carboniferous ... and this has been attempted with the Graptolites, and wit'l several ...

This era of intense bombardment, known as the Ordovician impact spike, may have resulted from meteorites falling from the ring rather than flying in from space, which would explain the strange ...

The digging and burrowing of prehistoric worms and other invertebrates along ocean bottoms sparked a chain of events that released oxygen into the ocean and atmosphere and helped kick-start what is ...

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This journal utilises an Online Peer Review Service (OPRS) for submissions. By clicking "Continue" you will be taken to our partner site https://mc.manuscriptcentral ...

Mauritania has two interconnected groundwater systems, the Continental Terminal coastal system and the interior Taoudeni Basin. Most groundwater flow happens in porous sedimentary rock, although some ...