搜索结果: 1-15 共查到“地质学 Cretaceous”相关记录36条 . 查询时间(0.087 秒)
Leaf fossils show severe end-Cretaceous plant extinction in Patagonia（图）
Leaf fossils severe end-Cretaceous plant extinction Patagonia
2021/1/18
The asteroid impact 66 million years ago that ushered in a mass extinction and ended the dinosaurs also killed off many of the plants they relied on for food. Fossil leaf assemblages from Patagonia su...
No social distancing in the Cretaceous:New study finds earliest evidence for mammal social behavior（图）
No social distancing Cretaceous earliest evidence mammal social behavior
2020/11/6
A new study led by U.S. National Science Foundation-funded paleontologists at the University of Washington and its Burke Museum of Natural History & Culture indicates that the earliest ...
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...
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, ...
Fossilized melanosomes and the colour of Cretaceous dinosaurs and birds
Fossilized melanosomes Cretaceous dinosaurs birds
2014/3/26
Spectacular fossils from the Early Cretaceous Jehol Group
1,2
of
northeastern China have greatly expanded our knowledge of the
diversity and palaeobiology of dinosaurs and early birds, and con-
t...
NEW MULTITUBERCULATE MAMMALS FROM THE LOWER CRETACEOUS (SHAHAI AND FUXIN FORMATIONS), NORTHEASTERN CHINA
LOWER CRETACEOUS MULTITUBERCULATE
2014/3/26
Two eobaatarid multituberculates, Heishanobaatar triangulusgen. et sp. nov. and Eobaataridae gen. et sp.
indet., and an ?albionbaatarid multituberculate, Kielanobaatar badaohaoensis gen. et sp. nov.,...
Isolated dinosaur teeth from the Lower Cretaceous Shahai and Fuxin formations of northeastern China
Dinosaurs Isolated teeth Shahai Formation Fuxin Formation Early cretaceous China
2014/3/26
Isolated dinosaur teeth recovered from seven localities near Fuxin (western Liaoning Province, northeast-ern China) are described. They come from sediments belonging to the Shahai and Fuxin formations...
Heat Flow in the Cretaceous of Northwestern Kansas and Implications for Regional Hydrology
Heat Flow Cretaceous of Northwestern Kansas Implications
2009/10/21
Temperature logs are interpreted to investigate the thermal structure of the units overlying the Kansas portion of the Cretaceous Dakota aquifer. The aim of this study is to determine if additional he...
When the "primitive" shark Tribodus(Hybodontiformes) meets the "modern" ray Pseudohypolophus (Rajiformes): the unique co-occurrence of these two durophagous Cretaceous selachians in Charentes(SWFrance)
Hybodontiformes Tribodus Rajiformes Pseudohypolophus Palaeoecology Palaeobiogeography
2009/10/20
The palaeoecology and palaeobiogeography of two Cretaceous selachian genera, Tribodus BRITO & FERREIRA,1989 and Pseudohypolophus CAPPETTA & CASE, 1975, are briefly discussed. These two similar-sized t...
A revision of the chimaeroid fishes (Holocephali,Chimaeroidei) from the British Cretaceous
Holocephali Chimaeroidei Cretaceous British collections Revision
2009/10/20
The preliminary results of a revision of the British Cretaceous chimaeroid fishes (Holocephali, Chimaeroidei) based on a study of museum collections are presented. The taxonomic composition (2 familie...
The ecological significance of solitary coral and bivalve epibionts on Lower Cretaceous (Valangianian-Aptian) ammonoids from the Italian Dolomites
Ammonoids epibionts Corals Autecology Cretaceous Dolomites Italy
2009/10/20
Lower Cretaceous deposits of the Puez section in the Dolomites (northern Italy) yielded a rich ammonoid fauna(28 genera, n = 424) showing unique epifaunal encrustations by the ahermatypic solitary scl...
Male spike strobiles with Gnetum affinity from the Early Cretaceous in western Liaoning, Northeast China
Early Cretaceous Gnetum affinity male spike strobiles Northeast China Yixian Formation
2009/8/4
A fossil with Gnetum affinity was found in the Jianshangou Member (Barremian Age) of the Yixian Formation (Lower Cretaceous Epoch) of the Jehol Group in western Liaoning, northeastern China. The singl...
Rock-Forming Nannofossils in Uppermost Jurassic-Lower Cretaceous Rock Units of Northwest Anatolia: Nannoconusand Its Resived Taxonomy
Rock-Forming Nannofossils Northwest Anatolia Uppermost Jurassic-Lower Cretaceous Rock
2009/7/8
Nannoconids have been recorded in a rock-forming quantity in the uppermost Jurassic-Lower Cretaceous rock units in Northwest Anatolia, Turkey. Samples were collected from seventeen stratigraphic secti...