Regina Dass, of the Department of Microbiology, School of Life Sciences, India, also said that the Earth does not have abiogenic
or geological forces capable of producing the spore-like objects they saw on the surface.
The natural gas form Xushen-1 in Songliao Basin exhibited a heavier [[delta].sup.13][C.sup.1] value (-29.40[per thousand]) than other natural gases and was characterized by a reversed carbon isotopic distribution pattern ([[delta].sup.13][C.sup.1] > [[delta].sup.13][C.sup.2] > [[delta].sup.13][C.sup.3] > [[delta].sup.13][C.sup.4] > [[delta].sup.13][C.sup.5]), which suggested that it is an abiogenic
A lot of abiogenic
C[H.sub.4] is also released in the magmatic lava area .
Trocellier, Se, As, Mo, Ag, Cd, In, Sb, Pt, Au, Tl, Re Traces in Biogenic and Abiogenic
Sulfides from Black Shales (Selwyn Basin, Yukon territories, Canada): a Nuclear Microprobe Study, Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 210, 441 (2003).
formation of alkanes in the Earth's crust as a minor source for global hydrocarbon reservoirs', Nature, Vol.
Members of the family Ostreidae Rafinesque, 1815 are among the sessile marine invertebrates that live on a variety of abiogenic
and biogenic substrates (Slack-Smith, 1998; Fernandez-Leborans, 2010).
(2011) for biogenic and abiogenic
radiaxial-fibrous and fascicular optic-fibrous calcite.
Based on biogenic and abiogenic
components and texture, there are 12 microfacies in the carbonate facies, those are grouped into three depositional environments corresponding to the inner, middle and outer shelf.
Moreover, the long water residence time, thermal stability of the water column, and high abiogenic
turbidity increase the probability that dominance of filamentous cyanobacteria will occur (Scheffer, 1998), this being a characteristic environmental condition of the reservoirs in the semi-arid region of Rio Grande do Norte.
Most Precambrian chert is abiogenic
, whereas silica-secreting organisms have controlled the accumulation of most cherrty deposits since the Cambrian.