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Mineral composition and organic geochemistry of the Lower Cretaceous Xiagou Formation source rock from the Qingxi Sag, Jiuquan Basin, Northwest China
Mineral composition Geochemistry Source rock Xiagou Formation Qingxi Sag Jiuquan Basin
2018/4/2
The Lower Cretaceous Xiagou Formation contains the major source rocks for the crude oils discovered in the Qingxi Sag and the South Uplift in the Jiuquan Basin, northwestern China. The Xiagou Formatio...
Construction of Late Cretaceous, Mid-Crustal Sheeted Plutons from the Eastern Transverse Ranges, Southern California
Southern California Sheeted Complex microstructures magmatic fabrics
2015/1/16
Differential exhumation within the eastern Transverse Ranges of southern California has revealed a tilted crustal section that provides a unique view into the architecture of the Mesozoic arc. At the ...
The Cretaceous and Cenozoic tectonic evolution of Southeast Asia
Cretaceous Cenozoic tectonic evolution Southeast Asia
2015/1/6
Tectonic reconstructions of Southeast Asia have given rise to numerous controversies that include the accretionary history of Sundaland and the enigmatic tectonic origin of the proto-South China Sea. ...
Positive geothermal anomalies in oceanic crust of Cretaceous age offshore Kamchatka
Positive geothermal anomalies oceanic crust Cretaceous age offshore Kamchatka
2014/12/31
Heat flow measurements were carried out in 2009 offshore Kamchatka during the German-Russian joint-expedition KALMAR. An area with elevated heat flow in oceanic crust of Cretaceous age – detected ~30 ...
The Effects of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Sea Level Change on the Molecular Isotopic Composition of Sediments Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO, USA
2014/11/4
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...
Th Effcts of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Sea Level Change on the Molecular Isotopic Composition Sediments Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO USA
2014/10/22
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...
Th Effcts of Sea Level Change on the Molecular and Isotopic Composition of Sediments in the Cretaceous Western Interior Seaway: Oceanic Anoxic Event 3, Mesa Verde, CO, USA
Isotopic Composition Sediments the Cretaceous Western Interior Seaway Oceanic Anoxic Event 3 Mesa Verde CO USA
2014/10/20
Cretaceous Oceanic Anoxic Events (OAEs) represent periods of enhanced burial of organic matter in black shale in marine, continental margin, and epicontinental settings around the globe. Compared to o...
New plants of Gnetales from Early Cretaceous of China, and its bearing on the early evolution of Ephedraceae and Welwitschiaceae in Gnetales
Early Cretaceous north China Spinobractea Latibractea Constrobilus
2014/1/16
The Gnetales are a higher group of Gymnosperms, but our current knowledge of the morphology of the early Gnetales is lacking. Most known specimens are fragmentary, which makes it difficult to elucidat...
Petrological vestiges of the Late Jurassic–Early Cretaceous transition from rift to back-arc basin in southernmost Chile: New age and geochemical data from the Capitán Aracena, Carlos III, and Tortuga ophiolitic complexes
Rocas Verdes ophiolites rift to back-arc basin transition U–Pb dating geochemistry mineral chemistry microbes
2017/4/11
The ophiolitic remnants of the Upper Mesozoic Rocas Verdes basin in southernmost South America were studied from
the perspectives of petrography, chemistry of minerals, bulk-rock geochemistry, and U–...
The Paleotopography Reconstruction of late Cretaceous Dabie Orogen by Low-Temperature Thermochronological Age-Elevation Relationships
Dabie Orogen Low-Temperature Thermochronology Paleotopography
2011/12/20
The paleotopography reconstruction of orogen has an important research value on the study of mountain building and the study of orogen’s regional control over the paleoclimate change. Considering the ...
Occurrence and distribution of series long-chain alkyl naphthalenes in Late Cretaceous sedimentary rocks of the Songliao Basin, China
long-chain alkyl naphthalenes distribution biomarkers
2017/4/12
A pair of series straight long-chain 2- and 1-alkyl naphthalenes (aNs) with alkyl chain carbon number up to 30 was
detected in late Cretaceous sedimentary source rocks of the onshore Songliao Basin, ...
Distribution and Abundance of Rudist Bivalves in the Cretaceous Platform Sequences in Egypt: Time and Space
Rudist Bivalves Cretaceous Platform Egypt
2010/12/20
As the rudist bivalves represent important organic buildups in the Cretaceous platform sequences, this study emphasizes vertical and spatial distribution of this group of bivalves in the geographic di...
Petrogenesis of Early Cretaceous silicic volcanism in SE Uruguay: The role of mantle and crustal sources
Uruguay Paraná-Etendeka rhyolite lower crust crustal contamination
2017/8/9
Early Cretaceous (~129 Ma) silicic rocks crop out in SE Uruguay between the Laguna Merín and Santa Lucía basins in the Lascano, Sierra São Miguel, Salamanca and Minas areas. They are mostly rhyol...
New triconodontids (Mammalia) from the Lower Cretaceous Shahai and Fuxin formations, northeastern China
Triconodontidae Alticonodontinae Meiconodon gen. nov Early Cretaceous Northeastern China
2014/3/26
The first triconodontids from Asia have been discovered from the Lower Cretaceous (Aptian to Albian) Shahai and Fuxin formations in
Liaoning Province, northeastern China: Meiconodon liigen. and sp. n...
A New Leptoceratopsid (Ornithischia: Ceratopsia) from the Upper Cretaceous of Shandong, China and Its Implications for Neoceratopsian Evolution
A New Leptoceratopsid Neoceratopsian Evolution
2014/3/26
The leptoceratopsids are a group of small, quadrupedal horned
dinosaurs. They normally have a total body length of about two
meters, and are thus much smaller than the contemporary
ceratopsids [1]....