Results 91 to 100 of about 6,981 (220)

Primordial magnetotaxis in putative giant paleoproterozoic magnetofossils

Proceedings of the National Academy of Sciences
Magnetotactic bacteria produce chains of nanoscopic iron minerals used for navigation, which can be preserved over geological timescales in the form of magnetofossils. Micrometer-sized magnetite crystals with unusual shapes suggesting a biologically controlled mineralization have been found in the geological record and termed giant magnetofossils.
Ualisson Donardelli Bellon, Wyn Williams, Ricardo Ivan Ferreira Trindade, Lara Maldanis, Douglas Galante   +4 more
openaire   +3 more sources

High pCO2-induced exopolysaccharide-rich ballasted aggregates of planktonic cyanobacteria could explain Paleoproterozoic carbon burial

Nature Communications, 2018
A Paleoproterozoic carbon isotope anomaly is likely linked to burial of oceanic cyanobacteria, but it is not clear how burial occurred. Here, the authors find that, under Paleoproterozoic pCO2 conditions, planktonic cyanobacteria increase ...
Nina A. Kamennaya, Marcin Zemla, Laura Mahoney, Liang Chen, Elizabeth Holman, Hoi-Ying Holman, Manfred Auer, Caroline M. Ajo-Franklin, Christer Jansson   +8 more
doaj   +1 more source

Table1_Tectonic Juxtaposition of Two Independent Paleoproterozoic Arcs by Cenozoic Duplexing in the Arun Tectonic Window of the Eastern Nepalese Himalaya.XLSX

, 2022
The tectonic evolution of the Himalayan orogenic belt before Cenozoic convergence is important to understand its modern structural framework. There is still controversy regarding the tectonic history of the lower Lesser Himalaya Sequence (LHS) in the ...
Songjian Ao (7335755), Saunak Bhandari (11138066), Rui Li (4631), Karel Schulmann (2842937), Wenjiao Xiao (2816182), Qigui Mao (11640707), Dongfang Song (7335758), Zhou Tan (223704), Hao Wang (39217)   +8 more
core   +1 more source

Sedimentation history of the Paleoproterozoic Singhbhum Group of rocks, eastern India and its implications

, 2016
This paper reviews the sedimentological, geochemical and stratigraphic characteristics of the Paleoproterozoic Chaibasa and Dhalbhum Formations (the Singhbhum Group) of eastern India and presents a comparative study with other Paleoproterozoic ...
Mallik, L., Chatterjee, P., Ohta, T., Saito, S., Chiarenzelli, J., Mazumder, Rajat, De, S.   +6 more
core   +1 more source

Table2_Tectonic Juxtaposition of Two Independent Paleoproterozoic Arcs by Cenozoic Duplexing in the Arun Tectonic Window of the Eastern Nepalese Himalaya.XLSX

, 2022
The tectonic evolution of the Himalayan orogenic belt before Cenozoic convergence is important to understand its modern structural framework. There is still controversy regarding the tectonic history of the lower Lesser Himalaya Sequence (LHS) in the ...
Songjian Ao (7335755), Saunak Bhandari (11138066), Rui Li (4631), Karel Schulmann (2842937), Wenjiao Xiao (2816182), Qigui Mao (11640707), Dongfang Song (7335758), Zhou Tan (223704), Hao Wang (39217)   +8 more
core   +1 more source

Dating the cyanobacterial ancestor of the chloroplast

, 2009
Cyanobacteria have played a pivotal role in the history of life on Earth being the first organism to carry out oxygenic photosynthesis, which changed atmospheric chemistry and allowed the evolution of Eukarya.
Luisa Falcon, Susana Magallon, Amanda Castillo   +2 more
core  

Self-guided walking tour of Paleoproterozoic stromatolites in the Medicine Bow Mountains, Wyoming

, 2014
Self-guided walking tour of Paleoproterozoic stromatolites in the Medicine Bow Mountains, Wyoming WSGS PubID: MR-1906 ...
D.R. Lageson (10070293), H.C. Beeler (10070077), D.W. Boyd (10070290)   +2 more
core   +1 more source

Supplementary data for "Changes in orogenic style and surface environment recorded in Paleoproterozoic foreland successions"

, 2023
Supplementary data for the paper "Changes in orogenic style and surficial environment recorded in Paleoproterozoic foreland successions" by Huang et al.
Bo Huang (9725534), Dong Fu (11262327)
core   +1 more source

Reappraisal of the Sumé Complex: geochemistry and geochronology of metaigneous rocks and implications for Paleoproteorozoic subduction-accretion events in the Borborema Province, NE Brazil

Brazilian Journal of Geology, 2019
The Alto Moxotó Terrane represents the largest exposure of Paleoproterozoic rocks in the central Borborema Province. Several medium- to high-grade metamorphic units are described in the terrane, however geochronological data are still scarce, and the ...
Edilton José dos Santos, Lauro Cézar Montefalco de Lira Santos   +1 more
doaj   +1 more source

Evolution of a Paleoproterozoic “weak type” orogeny in the West African Craton (Ivory Coast).

, 2009
International audienceThe Paleoproterozoic domain of Ivory Coast lies in the central part of the West African Craton (WAC) and is mainly constituted by TTG, greenstones, supracrustal rocks and leucogranites.
Cagnard, Florence, Pichon, Mélanie, Vidal, Max, Pouclet, André, Ouattara, G., Gumiaux, Charles   +5 more
core   +1 more source