资讯

Due to the lack of in-depth research on this structure, however, scientists are uncertain whether they are biogenic or abiogenic in origin. The study revealed that the crystallographic ...
The conceptual framework of ichnology with particular emphasis on the ethological (behavioral) classification of biogenic structures, as well as its applications to the ichnofacies concept and ...
Sedimentary rock is one of the three main ... by the deposition of the results of biogenic activity; and by precipitation from solution.
As light, moisture, and temperature interact, they form structures known as stromatolites made from limestone. These rock-like biogenic structures have existed in nature for 3.5 billion years ...
The fossils are stromatolites — sedimentary structures produced by microorganisms — and a team of Australian scientists found them in a western Greenland region known as the Isua Greenstone Belt.