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Anunt oficial: risc de tsunami urias pe coasta de vest a Japoniei, unde se afla 11 centrale nucleare

Anunt oficial: risc de tsunami urias pe coasta de vest a Japoniei, unde se afla 11 centrale nucleare

Anunt oficial: risc de tsunami urias pe coasta de vest a Japoniei, unde se afla 11 centrale nucleare Un eventual seism puternic in Marea Japoniei ar putea provoca in cateva minute un tsunami urias care ar atinge pe alocuri 23 de metri, potrivit unei simulari realizate la solicitarea Guvernului pe coasta de vest a Japoniei, […]

Plant life forms in the fossil record: When did the first canopy flowers appear?

Plant life forms in the fossil record: When did the first canopy flowers appear?

Most plant fossils are isolated organs, making it difficult to reconstruct the type of plant life or its ecosystem structure. In their study for Geology, published online on 28 Aug. 2014, researchers Camilla Crifт and colleagues used leaf vein density, a trait visible on leaf compression fossils, to document the occurrence of stratified forests with […]