搜索结果: 1-9 共查到“地质学 desert”相关记录9条 . 查询时间(0.038 秒)
An ancient desert covered in sand dunes as far as the eye could see, where dinosaurs and small mammals once roamed, may have been the real Jurassic Park. Today, the Navajo Sandstone, as it's called, i...
Bighorn sheep went extinct on desert island in Gulf of California, study finds
Bighorn sheep extinct desert island Gulf of California
2014/3/28
RIVERSIDE, Calif. — Using ancient DNA analysis and other techniques, a research team led by conservation biologists at the University of California, Riverside has determined that bighorn sheep, so nam...
Ree Chemistry of Arid Zone Calcrete Profiles-A Case Study From The Thar Desert, India
Arid Zone Calcrete India Ree Chemistry
2009/7/8
Calcrete is the widely prevalent duricrust associated with the weathering profiles of the Thar desert. The studies on REE behaviour within different weathering horizons of calcrete profiles, have rev...
Calcretized Ferricretes Around the Jaisalmer Area, Thar Desert, India: Their Chemistry, Mineralogy, Micromorphology and Genesis
ferricrete calcrete micromorphology inversion of relief Thar Desert
2009/7/7
Ferricrete, an iron duricrust, caps Tertiary and Mesozoic rocks around Jaisalmer in the Indian desert. These ferricretes are associated with two distinct present-day landforms. The upper unit is a hi...
Sr-Nd isotopic characteristics of eolian deposits in the Erdos Desert and Chinese Loess Plateau: Implications for their provenances
Erdos desert Chinese Loess Plateau material source eolian deposits Sr-Nd isotope
2017/8/10
Material sources of the northern deserts and the Loess Plateau in China are always one of the critical focuses in Quaternary and paleoclimate fields. In this paper, the method of Sr-Nd isotope geochem...
Reclamation of a Sandy Desert Through Floodwater Spreading: II. Characterization of Clay Minerals in the Watershed and the Freshly-Laid Sediment
The Agha Jari Formation Aquifer Management Erosion Gareh Bygone Plain Sedimentation
2011/11/11
The artificial recharge of groundwater (ARG), where practicable, is an easy and economical method for desertification control in the arid and semi-arid zones where overpumping has critically lowered t...
Origin of Magnesium Clays from the Amargosa Desert, Nevada
Dolomite Kerolite Mixed layer Precipitation Sepiolite Smectite Stevensite
2012/2/7
Deposits of sepiolite, trioctahedral smectite (mixed-layer kerolite/stevensite), calcite, and dolomite, found in the Amargosa Flat and Ash Meadows areas of the Amargosa Desert were formed by precipita...
Mixed-Layer Kerolite/Stevensite from the Amargosa Desert, Nevada
Hectorite Kerolite Layer charge Mixed layer Smectite Stevensite Talc
2012/2/7
Mixed-layer clays composed of randomly interstratified kerolite/stevensite occur as lake and/or spring deposits of probable Pliocene and Pleistocene age in the Amargosa Desert of southern Nevada, U.S....
Mineralogy of Al-Hasa Desert Soils (Saudi Arabia)
Mineralogy Al-Hasa Desert Soils Attapulgite illite X-ray mineralogical examination
2012/2/13
X-ray mineralogical examination of the 2?0 祄 fraction of oriented samples from a highly calcereous swamp soil and neighbouring Mio-Pliocene strata in A1-Hasa showed a wide range in mineralogy: attapul...