搜索结果: 1-8 共查到“地质学 controls”相关记录8条 . 查询时间(0.081 秒)
Lateral sediment sources and knickzones as controls on spatio-temporal variations of sediment transport in an Alpine river
Sediment transport Critical shear stress Return period floods Particle entrainment Basin hydrology Swiss Alps
2014/5/20
Modern mixed alluvial-bedrock channels in mountainous areas provide natural laboratories for understanding the time scales at which coarse-grained material has been entrained and transported from thei...
Stability of Mg-sulphate minerals in the presence of smectites: Possible mineralogical controls on H2O and nutrient cycling on Mars
Stability Mg-sulphate minerals presence of smectites mineralogical controls H2O nutrient cycling Mars
2012/3/30
Hydrated sulphate minerals, including kieserite (MgSO4·H2O), gypsum (CaSO4·2H2O), and bassanite (CaSO4·~0.5H2O), have been detected on Mars (Gendrin et al., 2005; Wray et al., 2010), and polyhydrated ...
Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia
uranium hydrogeochemistry geochemical modelling Namibia
2011/11/10
Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits ar...
Geochemical controls on uranium precipitation in calcrete palaeochannel deposits of Namibia
uranium hydrogeochemistry geochemical modelling Namibia
2011/11/7
Palaeo-river channels containing calcrete are important potential hosts for economic uranium mineralization in many parts of southern Africa particularly Namibia. The main feature of these deposits ar...
Mississippian (Osagean) Shallow-water,Mid-latitude Siliceous Sponge Spicule and Carbonate Facies: An Example from Kansas with Implications for Regional Controls and Heterozoan Distribution of Potential Reservoir Facies
Mississippian (Osagean) Shallow-water Mid-latitude Siliceous Sponge Spicule
2009/10/20
Mixtures of biosiliceous and heterozoan-dominated carbonate deposits are commonly interpreted as recording cold-water polar or deep basinal conditions. However, a growing body of literature is documen...
Revisiting silicate authigenesis in the Pliocene–Pleistocene Lake Tecopa beds, southeastern California: Depositional and hydrological controls
saline, alkaline lake, Pliocene–Pleistocene, zeolite, depositional facies, authigenic minerals
2011/11/14
The Pliocene–Pleistocene Lake Tecopa beds present a well-documented example of authigenic silicate diagenesis in an ancient saline, alkaline lake environment. Controls on authigenic mineral formation ...
Diagenetic and sedimentological controls on the composition of organic matter preserved in California Borderland Basin sediments
Diagenetic and sedimentological controls the composition of organic matter preserved California Borderland Basin sediments
2014/4/23
Compound-specific radiocarbon (14C) contents, stable carbon isotopes, and abundances of phytoplankton and vascular plant derived lipid biomarkers (alkenones and fatty acids) were obtained from Santa B...
Surface structural controls on pyrite oxidation kinetics: An XPS-UPS, STM, and modeling study
controls pyrite oxidation kinetics XPS-UPS STM modeling study
2012/4/6
X-ray and ultraviolet photoelectron spectroscopy (XPS and UPS,respectively) and scan-ning tunneling microscopy (STM) were used to observe the initial oxidation of pyrite surfaces in air. The results s...