Results 231 to 240 of about 97,186 (306)

Sedimentology of silica granules and haematite in the 3.47 Ga Antarctic Creek Member, Mount Ada Basalt, Western Australia

Sedimentology, EarlyView.
ABSTRACT The Paleoarchean Antarctic Creek Member of the Mount Ada Basalt, Eastern Pilbara Terrane, Western Australia, includes beds of jasper and white chert composed of sand‐sized silica granules that often contain or are mixed with silt‐sized particles of haematite.
Donald R. Lowe, Gary R. Byerly
wiley   +1 more source

Fe-phosphates in Jezero Crater as evidence for an ancient habitable environment on Mars. [PDF]

Nat Commun
Kizovski TV, Schmidt ME, O'Neil L, Jones MWM, Tosca NJ, Klevang DA, Hurowitz JA, Adcock CT, Hausrath EM, Siebach KL, Wolf ZU, Sharma S, VanBommel SJ, McCubbin FM, Cloutis E, Cable ML, Liu Y, Clark BC, Treiman AH, Tice MM, Catling DC, Maki J, Bosak T, Weiss BP, Fairén AG, Christian JR, Knight AL, Shumway AO, Randazzo NR, Jørgensen PS, Lawson PR, Wade L, Heirwegh C, Elam WT, Allwood AC.   +34 more
europepmc   +1 more source

Modern microbial landscape: Aerial mapping of microbially induced sedimentary structures forming in a coastal sabkha

Sedimentology, EarlyView.
ABSTRACT Microbially induced sedimentary structures (MISS) are considered important for understanding primitive life on Earth and for guiding the search for life on other planets. These structures are regarded as macroscopic fossils of early communities of unicellular organisms that did not produce skeletons or shells. In this study, field observations
Tomaso R. R. Bontognali, Axel Bouquety, Ottaviano Rüsch, Brigitte Kuhn, Zulfa Al Disi, Fadhil Sadooni, Nikolaus Kuhn, Jean‐Luc Josset, Hamad Al‐Saad Al‐Kuwari   +8 more
wiley   +1 more source

Stratigraphy of a Pennsylvanian Deltaic Sequence in Russellville, Arkansas [PDF]

, 1982
Fritsche, Ken, Moyer, Christopher F.
core   +2 more sources

Source‐to‐sink sediment transport reversals during glacial sea‐level lowstands sustain soil formation on pericoastal carbonate terrains

Sedimentology, EarlyView.
ABSTRACT Understanding the processes that drive soil formation is crucial for developing sustainable land‐use strategies, as changing land‐use practices and climate change exacerbate soil erosion. The formation of substantial arable soils on carbonate bedrock requires substantial dust accretion as the underlying bedrock lacks siliciclastic material. In
Daniel Palchan, Yael Jacobi Glass, Olga Berlin, Yoav Ben Dor   +3 more
wiley   +1 more source

Habitat reconstruction for the Late Pleistocene Siberian saber-toothed cat Homotherium using microphytofossils. [PDF]

Sci Rep
Lopatin AV, Lopatina DA, Zanina OG, Protopopov AV, Klimovsky AI.   +4 more
europepmc   +1 more source

Organic and Inorganic Geochemical Investigation of the Silurian Shale of Qusaiba Formation, Tayma Area, Northwestern Saudi Arabia: Implications for Oxidation and Leaching of Organic Matter. [PDF]

ACS Omega
Lashin A, Hakimi MH, AlGhamdi F, Matthew Amao A, AlQuraishi A, Laboun A, Abdel Fattah K.   +6 more
europepmc   +1 more source

Research on the evolution mechanisms and prevention countermeasures behind a large-scale landslide in complicated-geological-structure red beds. [PDF]

Sci Rep
He H, Zheng D, Xu G, Dong X, Liu W, Zou Y, Wang H.   +6 more
europepmc   +1 more source

Evaluation of potential helium source rocks and helium enrichment factors in coalbed methane in the eastern margin of Ordos basin. [PDF]

Sci Rep
Chen Y, Tao S, Kang R, Gao J, Yang Y, Fang X, Song W, Chen Y, Liu X.   +8 more
europepmc   +1 more source

Cosmogenic helium signatures at Deception Island volcano (Antarctica): geochronological implications for its eruptive history. [PDF]

Sci Rep
Álvarez-Valero AM, Sumino H, Burgess R, Arribas L, Polo-Sánchez A, Geyer A, Caracausi A, Albert H, Aulinas M, Ban M, Borrajo J, García-Arias M, Ichikawa G, Kereszturi G, Rodríguez JAL.   +14 more
europepmc   +1 more source