搜索结果: 1-15 共查到“地质学 Light”相关记录16条 . 查询时间(0.093 秒)
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
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
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
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
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
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
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
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
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
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
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
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
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
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
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...