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Gases from ancient Inland Northwest volcanic eruptions blocked out sun,cooling planet（图）
Gases ancient Inland Northwest volcanic eruptions blocked out sun cooling planet
2017/10/25
The Pacific Northwest was home to one of the Earth’s largest known volcanic eruptions, a millennia-long spewing of sulfuric gas that blocked out the sun and cooled the planet, Washington State Univers...
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...
Hydrochemical characteristics and sources of brines in the Gasikule salt lake, Northwest Qaidam Basin, China
hydrochemical characteristics origin of brines material source Gasikule salt lake Qaidam Basin
2017/4/10
The origin of the abundant salt resources in the Gasikule salt lake in the northwest Qaidam Basin in China remains
highly contested. We performed a detailed study of the hydrochemical characteristics...
Deuterium- and 15N-signatures of organic globules in Murchison and Northwest Africa 801 meteorites
meteorites isotope imaging H and N isotope anomalies organic matter aqueous alteration
2017/4/10
Carbonaceous matter from the matrix of the Murchison (CM2) meteorite and Northwest Africa (NWA) 801 (CR2)
meteorite that were extremely rich in deuterium (D) and 15N was studied using in situ isotope...
Mineralogical Considerations in Soil Fertility Management n Selected Farmlands in Limpopo and Northwest Provinces,South Africa
Mineralogical Considerations Soil Fertility Management n Selected Farmlands Limpopo Northwest Provinces
2012/3/14
Mineralogical Considerations in Soil Fertility Management n Selected Farmlands in Limpopo and Northwest Provinces,South Africa.
Ripple marks as indicators of Late Ordovician sedimentary environments in Northwest Estonia
ripple marks Upper Ordovician Estonia
2009/10/21
Late Ordovician sedimentary environments promoting the development of ripple marks in shallow shelf carbonate deposits of northern Estonia are analysed. Ripple marks are described using different para...
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...
Upper Cretaceous Eclogite-Facies Metamorphic Rocks from the Biga Peninsula, Northwest Turkey
Eclogite facies metamorphism Rb/Sr data Turkey Biga Peninsula Rhodope Massif
2009/7/8
Medium-grade metamorphic rocks crop out over a large area under the Neogene sedimentary and volcanic rocks in the central Biga Peninsula in northwest Turkey. These Çamlıca metamorphics co...
New Results on the Lithostratigraphy of the Kazdağ Massif in Northwest Turkey
Kazdağ northwestern Turkey metamorphic rocks lithostratigraphy extension core complex
2009/7/8
The high-grade metamorphic rocks of the Kazdağ mountain range, termed the Kazdağ Group, crop out as a tectonic window under the Karakaya Complex in northwestern Turkey. The Kazdağ Group...
期刊信息
篇名
Geochemical characteristics of a rare metal–bearing pegmatite and the related granites in the Altay Mountains, northwest China.
语种
英文
撰写或编译
撰写
作者
ZHU Y-F.,Y-S ZENG,L-B GU
第一作者单位
北京大学
刊物名称
J. A...
Clay Mineralogy and Occurrence of Ferrian Smectites between Serpentinite Saprolites and Basalts in Biga Peninsula, Northwest Turkey
Alteration Basalt Beidellite Ferric Iron Mica Schist Montmorillonite Serpentinite Turkey
2011/12/7
Abstract: The clay mineralogy of an oxisol-saprolite overlying serpentinite and underlying basalt was studied with different techniques to evaluate the clay mineral transformation that occurred and to...
Fe3+-Rich Montmorillonite-Beidellite Series in Ayvacik Bentonite Deposit, Biga Peninsula, Northwest Turkey
Biga Peninsula Fe-rich Beidellite Montmorillonite Turkey
2011/12/6
Abstract: The Ayvac齥 bentonites, products of Miocene calc-alkaline volcanic rocks, are composed of smectite of the montmorillonite-beidellite series. Fault-related hydrothermal solutions have altered ...
THE MUSKOX INTRUSION, A RECENTLY DISCOVERED LAYERED INTRUSION IN THE COPPERMINE RIVER AREA, NORTHWEST TERRITORIES, CANADAl
THE MUSKOX INTRUSION LAYERED INTRUSION IN THE COPPERMINE RIVER AREA NORTHWEST TERRITORIES CANADAl
2014/4/8
The Muskox intrusion is a Precambrian layered basic pluton, 74 miles in length, which is dike-like in plan and funnelshaped in cross-section. Its internal structure is divided into four principal unit...