搜索结果: 1-15 共查到“地质学 Light”相关记录16条 . 查询时间(0.406 秒)
UCR Study Sheds Light on Earth’s First Animals（图）
UCR Study Light Earth First Animals
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2017/7/20
More than 550 million years ago, the oceans were teeming with flat, soft-bodied creatures that fed on microbes and algae and could grow as big as bathmats. Today, researchers at the University of Cali...
Newly discovered baby Titanosaur sheds light on dinosaurs' early lives
baby Titanosaur dinosaurs early lives
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2016/4/25
Long-necked sauropod dinosaurs include the largest animals ever to walk on land, but they hatched from eggs no bigger than a soccer ball.A lack of young sauropod fossils, however, has left the earlies...
Research sheds new light on 150-year-old dinosaur temperature debate
new light 150-year-old dinosaur temperature debate
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2015/11/13
Were dinosaurs fast, aggressive hunters like those in the movie "Jurassic World"? Or did they have lower metabolic rates that made them more like today's alligators and crocodiles?For 150 years, scien...
GEOGRAPHIC INFORMATION ISSUES ASSOCIATED WITH SOCIOECONOMIC MODELLING FROM NIGHT-TIME LIGHT REMOTE SENSING DATA
Remote Sensing GIS Human Settlement Urban Mapping Modeling Economy
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2015/7/29
The ability to model socio-economic parameters from remote sensing data sources is an important element in addressing the data
gap that currently exists for linking human and physical systems in Ear...
Zn-Doped Palygorskite Loaded TiO2 for Visible-Light Active Catalysts
Catalyst Palygorskite TiO2 Visible Light
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2011/11/14
Zn-doped palygorskite loaded TiO2 for visible-light active catalysts were prepared by the method of liquid ion exchange and precipitation. XRD and SEM measurments show that the titanium dioxide was lo...
Lithium abundance and isotope composition of Logudoro basalts, Sardinia: Origin of light Li signature
lithium isotopes diffusion mantle heterogeneity Sardinia
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2017/4/12
Basalts from Logudoro, Sardinia (Italy), showing geochemical features similar to EM1-type mantle source, have been
analyzed for their Li isotopic composition to provide data related to a heretofore u...
Synthesis and Characterization of Attapulgite Clay Coated Ag/AgBr/TiO2 Visible Light Photocatalyst
Ag/AgBr/TiO2 Attapulgite Clay Photocatalytic
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2011/11/14
Attapulgite clay coated Ag/AgBr/TiO2 visible light photocatalyst was prepared by an impregnation-deposition-precipitation method. The catalyst was characterized via powder X-ray diffraction (XRD), TEM...
Fossilized Giant Penguin Reveals Unusual Colors, Sheds Light on Bird Evolution（图）
Fossilized Giant Penguin Unusual Colors Bird Evolution
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2010/10/13
AUSTIN, Texas—Paleontologists have unearthed the first extinct penguin with preserved evidence of scales and feathers. The 36-million-year-old fossil from Peru shows the new giant penguin’s feathers w...
Late Paleozoic geodynamics of the Malopolska Massif in the light of new paleomagnetic data for the southern Holy Cross Mountains
Holy Cross Mountains Mał opolska Massif Paleomagnetism Paleogeography
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2009/10/20
Paleomagnetic studies ofDevonian carbonate rocks in the southernHoly CrossMountains have been conducted, the general aim being to verify the occurrence of hypothetical pre-Variscan rotations of theMa&...
Linking allochthonous dissolved organic matter and boreal lake sediment carbon sequestration: The role of light-mediated flocculation
Linking allochthonous dissolved organic matter boreal lake sediment carbon sequestration The role of light-mediated flocculation
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2014/4/21
We measured flocculation of dissolved organic carbon (DOC) in the water from a humic lake (DOC = 14.9 mg C L-1) and from an adjacent mire (DOC = 25.7 mg C L-1), in in situ enclosure experiments with d...
Stability of high-Al titanite from low-pressure calcsilicates in light of fluid and host-rock composition
high-Al titanite low-pressure fluid and host-rock
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2012/3/31
Our recent paper noted that °∞some of the existing [M?ssbauer] studies (e.g., Fuchs et al. 1995) should be discounted due to th
fact that peak widths are less than the theoretical minimum imposed by ...
Stability of high-Al titanite from low-pressure calcsilicates in light of fluid and host-rock composition
Titanite of variable Al composition
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2012/3/30
TitaniteofvariableAlandFcontentwasfoundingranulite-toamphibolite-facies
calcsilicatesinCentralDronningMaudLand,Antarctica.ThehighestobservedAlcon-
tentcorrespondstoanX
[ Al/(Al Ti)]of0.53.Previousl...
Light Scattering Study on Sol-Gel Transformation of SiO2 Colloid at Extremely High Concentrations
Light Scattering Study SiO2 Colloids Sol-gel Transformation
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2011/12/8
Abstract: Ludox SiO2 sols with a reasonably uniform size of 12 nm and in the high concentration of 10 to 40 wt% were transformed to gels by lowering the pH. The process from sol to gel, followed by li...
Light-induced variations in realgar and β-As4S4: X-ray diffraction and Raman studies
Light-induced variations realgar β-As4S4 X-ray diffraction Raman studies
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2012/4/6
Transformations induced bylight in realgar and ,B-As,S, have been studied bymeans of X-ray diffraction (powder and single-crystal) and Raman laser spectroscopy. Both poly-chromatic and monochromatic l...
Light-induced variations in realgar and β-As4S4: X-ray diffraction and Raman studies
Light-induced variations realgar β-As4S4 X-ray Raman studies
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2012/4/6
Natural apatites used in fertilizer industries often contain trace amounts of Cd, which mayreach concentrations of several tens to a few hundred parts per million. Cdis not eliminated during the produ...