Results 181 to 190 of about 13,254 (248)

Evolution Model for the Paleoproterozoic Talvivaara Mudstone‐Hosted Ni‐Zn‐Cu‐Co Deposit in Fennoscandia

Terra Nova, EarlyView.
ABSTRACT The Paleoproterozoic Talvivaara mudstone is a very large sulfidic Ni‐Co deposit that records enhanced organic matter accumulation during the global Shunga Event. Here, rock geochemistry and microscale S and Fe isotope composition of in situ pyrrhotites and pyrites are studied in well‐characterised, well‐preserved drill core samples.
Raimo Lahtinen, Jaakko J. Laitala, Joonas J. Virtasalo, Martin J. Whitehouse   +3 more
wiley   +1 more source

Convergent Evolution in Amblyopsid Cavefishes and the Age of Eastern North American Subterranean Ecosystems. [PDF]

Mol Biol Evol
Brownstein CD, Policarpo M, Harrington RC, Hoffman EA, Stokes MF, Casane D, Near TJ.   +6 more
europepmc   +1 more source

The Seismic Expression of Core Complex‐Style Extensional Detachment Faults in Rifted Margins

Terra Nova, EarlyView.
ABSTRACT The identification of core complex‐style extensional detachment faults (CCDFs) in rifted margins is crucial for accurately restoring their stratigraphic and thermal histories. Yet recognising CCDFs in seismic reflection images is challenging due to their faint topographic expression; the lack of associated abrupt offset in seismic reflections;
Pauline Chenin, Gianreto Manatschal, Cuimei Zhang, Peng Chao   +3 more
wiley   +1 more source

Tree‐Ring Oxygen Isotope Values During the Last Glacial Maximum and Insights to Future Changes in Climate

Terra Nova, EarlyView.
ABSTRACT Annual tree‐ring oxygen‐isotope values were measured from sections of two fossil logs of Picea mariana (black spruce) recovered from last glacial maximum proglacial sediment in Illinois, USA. Collectively, the specimens date from ca. 25,130 to 24,720 cal years BP.
Dana M. Labotka, Mostafa J. Fayek, B. Brandon Curry   +2 more
wiley   +1 more source

Discovering the dual degradation pathway of emerald green in oil paints: The effects of light and humidity. [PDF]

Sci Adv
Carboni Marri S, Monico L, Rosi F, Miliani C, Vivani R, Janssens K, De Meyer S, Mathon O, Cotte M, Burghammer M, Garrevoet J, Falkenberg G, Avranovich Clerici E, Rios-Casier A, Van der Snickt G, Romani A.   +15 more
europepmc   +1 more source

Ductile Extrusion Triggered by Continental Collision in NE Brazil

Terra Nova, EarlyView.
ABSTRACT The Borborema Province in northeastern Brazil hosts one of the world's largest strike‐slip shear zone networks, active during the late Neoproterozoic assembly of West Gondwana. Whether these shear zones initiated during active continental collision or as a post‐orogenic response to far‐field stresses remains debated.
L. R. Tesser, C. E. Ganade, C. R. Cioffi, J. B. Forshaw, M. Hueck, E. Celis, M. A. S. Basei   +6 more
wiley   +1 more source

Stratigraphy

ACTECH project, 2017
openaire   +2 more sources

The first non-mammalian synapsid embryo from the Triassic of South Africa. [PDF]

PLoS One
Benoit J, Fernandez V, Botha J.
europepmc   +1 more source

Buried deep freshwater reserves beneath salinity-stressed coastal Bangladesh. [PDF]

Nat Commun
Le H, Key K, Steckler MS, Sazeed N, Person M, Bhuiyan A, Khan MR, Ahmed KM.   +7 more
europepmc   +1 more source

Uncertainties in the phylogeny and biogeography of cave crickets. [PDF]

Commun Biol
Wang Y, Du S, Engel MS, Cai C.
europepmc   +1 more source