Results 171 to 180 of about 5,261 (211)

Marine phosphorus and atmospheric oxygen were coupled during the Great Oxidation Event. [PDF]

Nat Commun
Dodd MS, Li C, Gu H, Zhang Z, Hou M, Sadekov A, Rosière CA, Pirajno F, Alcott L, Ossa FO, Mills BJW, Bekker A.   +11 more
europepmc   +1 more source

New Nd-Sr isotope-geochemical research of the paleoproterozoic PGE-bearing Monchetundra massif rocks (the Fennoscandian Shield)

, 2015
Kunakkuzin Е.L., Bayanova Т.B., Nerovich L.I., Borisenko Е.S., Serov P.А., Elizarov D.V.   +5 more
openalex   +1 more source

Mobility and community at Mesolithic Lake Onega, Karelia, north-west Russia: insights from strontium isotope analysis. [PDF]

Archaeol Anthropol Sci
Eckelmann R, Arppe L, Tarasov A, Pospieszny Ł, Ackerman L, Heyd V, Gerasimov D, Moiseyev V, Fairbanks V, Hyland C, Mannermaa K.   +10 more
europepmc   +1 more source

Effect of land use, geology, and seasonality on hydrogeochemical baseline variations in a watershed impacted by human activities in the eastern Amazon. [PDF]

Environ Monit Assess
Salomão GN, Dall'Agnol R, de Almeida GS, Amarante RT, Mello GM, da Silva Júnior RO, Guimarães JTF, da Silva MS, Ferreira DM, Pontes PRM, Sahoo PK, Marques ED, da Silva Filho EV.   +12 more
europepmc   +1 more source

Mesozoic subduction and multi-episode exhumation in the Chinese Sulu orogen: evidence from multimineral chronometry of the Paleoproterozoic metagabbro

Lishuang Liu, Jinghui Guo, Wentao Xu, Wang Xu   +3 more
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Stability analysis and optimization of open pit mine slopes based on the improved Sarma method with nonhomogeneous hydraulic boundary conditions. [PDF]

Sci Rep
Ma G, Liang Z, Ou S, Tao Z, Huang B, Cao H.   +5 more
europepmc   +1 more source

RI-66 A gravity and magnetic investigation of east-central Minnesota: Insights into the structure and evolution of the Paleoproterozoic Penokean Orogen

, 2008
V.W. Chandler, Jirsa, T.J. Boerboom
openalex   +1 more source

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The Paleoproterozoic megascopic Stirling biota

Paleobiology, 2007
AbstractThe 2.0–1.8-billion-year-old Stirling Range Formation in southwestern Australia preserves the deposits of a siliciclastic shoreline formed under the influence of storms, longshore currents, and tidal currents. Sandstones contain a megascopic fossil biota represented by discoidal fossils similar to the EdiacaranAspidellaBillings, 1872, as well ...
Stefan Bengtson, Birger Rasmussen, Bryan Krapež   +2 more
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A Paleoproterozoic A-type Rhyolite

Chinese Journal of Geochemistry, 1999
The rhyolites in the upper Luliang Group of Shanxi, China, are Paleoproterozoic weakly alkaline volcanic rocks. They are characterized by high SiO2, Na2O + K2O, Zr, Nb, Ga, Y and REE contents and large FeO* /MgO, Rb/Sr and Ga/Al ratios, and low CaO, Sr and Eu contents, and share much in common with the A-type granitic rocks.
Yu Jinhai, Wang Dezi
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