Results 81 to 90 of about 31,568 (232)

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Analysing the Drivers of Cropland Footprint in Leading Agricultural Nations: Evidence From MMQR Approach

Geological Journal, EarlyView.
ABSTRACT Climate change represents the biggest current challenge for us and for future generations. Its impact on agriculture is undeniable, considering the food security goal. Thus, the cropland footprint has been distinguished as a comprehensive index for assessing the impact of environmental changes in agricultural areas determined by the increased ...
Ibrahim Cutcu, Magdalena Radulescu
wiley   +1 more source

Elongated theropod tracks from the Cretaceous Apenninic Carbonate Platform of southern Latium (central Italy) [PDF]

, 2015
New dinosaur footprints were recently discovered in southern Latium (Italy). The tracks all appear slightly differently preserved and are characterized by elongated metatarsal impressions, recording the complex locomotor behaviour of a medium-sized ...
Carluccio, R., CITTON, PAOLO, Nicolosi, I., NICOSIA, Umberto, ROMANO, MARCO   +4 more
core   +1 more source

Mesozoic–Cenozoic Thermochronology of the Tarim–Southern Tianshan System, NW China

Geological Journal, EarlyView.
Tectonothermal history of the Tarim–Southern Tianshan system compared with the major tectonic events at far‐field plate margins. ABSTRACT The Tarim Basin, an oil‐bearing basin in northwest China, is tectonically and sedimentologically linked to the Southern Tianshan Orogenic Belt.
Shuangfeng Zhao, Wen Chen, Jingbo Sun, Ze Shen, Jie Zhang   +4 more
wiley   +1 more source

Conellae, enigmatic structures on cephalopod shells—shapes, distribution, and formation [PDF]

, 2019
Conellae, enigmatic cone-shaped structures which can be found on the surface of internal moulds of cephalopod shells (predominantly of ammonoids), are regarded herein as the product of remote (biologically induced) biomineralization formed in closed-off ...
Hoffmann, René, Keupp, Helmut, Mironenko, Aleksandr   +2 more
core   +1 more source

Making vertebrate fossil radiocarbon dates more useful for global scientific research

Journal of Quaternary Science, EarlyView.
ABSTRACT Radiocarbon dating of bones is essential for reconstructing timelines of species' occurrences, domestication, extinction, migrations, and interactions with Quaternary environments. Many studies compile these chronologies at continental to global scales by aggregating radiocarbon dates from various sources, often balancing data quantity and ...
Salvador Herrando‐Pérez, Thomas W. Stafford Jr.   +1 more
wiley   +1 more source

Form-function relationships in dragonfly mandibles under an evolutionary perspective [PDF]

, 2017
© 2017 The Author(s). Functional requirements may constrain phenotypic diversification or foster it. For insect mouthparts, the quantification of the relationship between shape and function in an evolutionary framework remained largely unexplored.
Blanke, Alexander, Dutel, Hugo, Fagan, Michael J., Patera, Alessandra, Schmitz, Helmut   +4 more
core   +2 more sources

Lateglacial and Holocene mountain glacier fluctuations near Cape Farewell South Greenland inferred from 10Be moraine dating

Journal of Quaternary Science, EarlyView.
ABSTRACT We report 43 new 10Be exposure ages and six 26Al/10Be measurements from replicates from a small piedmont mountain glacier located at Cape Farewell (south Greenland) and temperature anomalies estimated from equilibrium‐line altitude (ELA) changes derived from 3D glacier reconstruction carried out using the ‘GlaRe’ toolbox.
Vincent Jomelli, Joanna Charton, José M. Fernández‐Fernández, Régis Braucher, Didier Swingedouw, Amen Al Yaari, Marc Oliva, Stephanie Gairoard, Julia García‐Oteyza, Aster Team   +9 more
wiley   +1 more source

Decline in extinction rates and scale invariance in the fossil record

, 1998
We show that the decline in the extinction rate during the Phanerozoic can be accurately parameterized by a logarithmic fit to the cumulative total extinction. This implies that extinction intensity is falling off approximately as the reciprocal of time.
Eble, Gunther J., Newman, M. E. J.
core   +2 more sources

Mid‐Holocene drying of K'gari lakes (subtropical eastern Australia) necessitates re‐evaluation of the El Niño–Southern Oscillation climate links and future drying risk

Journal of Quaternary Science, EarlyView.
ABSTRACT The Holocene history of Australia's climate is surprisingly poorly understood. This is, in part, because of the relatively weak forcing of Holocene climate versus that of the late Pleistocene. However, it is commonly suggested that eastern Australia dried during the mid‐ to late‐Holocene and that this was in response to increased activity in ...
John Tibby, Haidee Cadd, Matthew Harris, Jonathan C. Marshall, Jonathan Tyler, Cameron Barr, Francesca McInerney, Patrick Moss, Claire Murphy, Patricia S. Gadd, Geraldine E. Jacobsen, Mathew Raven, Glenn McGregor, Cameron Schulz, Harald Hofmann   +14 more
wiley   +1 more source