Signatures of early microbial life from the Archean (4 to 2.5 Ga) eon
K Lepot - Earth-Science Reviews, 2020 - Elsevier
Abstract The Archean era (4 to 2.5 billion years ago, Ga) yielded rocks that include the
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
oldest conclusive traces of life as well as many controversial occurrences. Carbonaceous …
The Archaean geological history of the Singhbhum Craton, India–a proposal for a consistent framework of craton evolution
Abstract The Singhbhum Craton of East India has a remarkably well-preserved Archaean
geological record that rivals those of the Kaapvaal and Pilbara cratons. Based on a critical …
geological record that rivals those of the Kaapvaal and Pilbara cratons. Based on a critical …
Iron formation: the sedimentary product of a complex interplay among mantle, tectonic, oceanic, and biospheric processes
A Bekker, JF Slack, N Planavsky… - Economic …, 2010 - pubs.geoscienceworld.org
Iron formations are economically important sedimentary rocks that are most common in
Precambrian sedimentary successions. Although many aspects of their origin remain …
Precambrian sedimentary successions. Although many aspects of their origin remain …
Biosignatures on Mars: what, where, and how? Implications for the search for martian life
The search for traces of life is one of the principal objectives of Mars exploration. Central to
this objective is the concept of habitability, the set of conditions that allows the appearance …
this objective is the concept of habitability, the set of conditions that allows the appearance …
A non-marine depositional setting for the northern Fortescue Group, Pilbara Craton, inferred from trace element geochemistry of stromatolitic carbonates
R Bolhar, MJ Van Kranendonk - Precambrian Research, 2007 - Elsevier
The depositional environment of sedimentary rocks from the Neoarchaean Fortescue Group
(2.78–2.63 Ga) in the Hamersley Basin, Pilbara Craton, Western Australia, is controversial …
(2.78–2.63 Ga) in the Hamersley Basin, Pilbara Craton, Western Australia, is controversial …
Phosphate oxygen isotopic evidence for a temperate and biologically active Archaean ocean
Oxygen and silicon isotope compositions of cherts,, and studies of protein evolution have
been interpreted to reflect ocean temperatures of 55–85° C during the early …
been interpreted to reflect ocean temperatures of 55–85° C during the early …
Cellular remains in a~ 3.42-billion-year-old subseafloor hydrothermal environment
Subsurface habitats on Earth host an extensive extant biosphere and likely provided one of
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …
Earth's earliest microbial habitats. Although the site of life's emergence continues to be …
Habitability on Mars from a microbial point of view
Extraterrestrial habitability is a complex notion. We briefly review what is known about the
origin of life on Earth, that is, life based on carbon chemistry and water. We then discuss …
origin of life on Earth, that is, life based on carbon chemistry and water. We then discuss …
Silica alteration zones in the Barberton greenstone belt: a window into subseafloor processes 3.5–3.3 Ga ago
Silicification of volcanic rocks, ranging from komatiitic to dacitic in composition, is a common
phenomenon of the 3.5 to 3.2 Ga old volcano-sedimentary succession of the Barberton …
phenomenon of the 3.5 to 3.2 Ga old volcano-sedimentary succession of the Barberton …
Did life originate from a global chemical reactor?
Many decades of experimental and theoretical research on the origin of life have yielded
important discoveries regarding the chemical and physical conditions under which organic …
important discoveries regarding the chemical and physical conditions under which organic …