Search results
Results from the WOW.Com Content Network
A bioherm is a landform of organic sedimentary rock enclosed or surrounded by rock of different origin. [2] A biostrome is a distinctly bedded or broadly lenticular sedimentary rock landform. [ 3 ] Krumbein additionally used these terms to distinguish different shapes of stromatolites : "Distinctly bedded, widely extensive, blanketlike build ...
It has a 4.5-star rating from more than 1,200 buyers who gave good reviews for its effectiveness and non-greasy feel. One customer described it as a "great gel for pain relief," noting that the ...
Stromatolites (/ s t r o ... Annual Review of Earth and Planetary Sciences. 27: 313 ...
The lack of many well-preserved stromatolites has been proposed as a consequence of ongoing diagenesis during formation. [5] Diagenesis is a weathering process where newly deposited sediments lies on top of the old sedimentary bed, buried and compacted, lithified and uplifted to the surface as sedimentary rocks.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more
The Gunflint Chert is composed of biogenic stromatolites. [3] At the time of its discovery in the 1950s, it was the earliest form of life discovered and described in scientific literature, as well as the earliest evidence for photosynthesis. [4] The black layers in the sequence contain microfossils that are 1.9 to 2.3 billion years in age.
May this article can stay better in sedimentary rocks. Not all stromatolites are sure from organic source, also the article states the modern stromatolites are far different from the precambian ones. --Demostene119 20:36, 20 March 2007 (UTC) ^^^ Stromatolites only come from an organic source.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more