摘要: The rotation of the earth is discussed in connection with time measurement and tidal deformations. Short-period irregularities in the earth rotation are considered, and the existence of global oscillations of the rotation rate is noted.关键词:...
Based on the measurements of atmospheric electric field and various meteorological elements from the rooftop of a building(about 15 m high),the characteristics of atmospheric electric field in different weather conditions are analyzed.Criteria to select fair-weather days are set according to the data ...
A systematic study of rare earth elements(REE) within the surface sediments from 10 bays situated along the coast of Guangdong Provence,China,has facilitated a more rigorous understanding of constraints on sediment provenance in the area.The results show that REE concentrations are similar within a ...
Characterization of the candidate landing region for Tianwen-1—China’s first mission to Mars. Earth Space Sci. 8, e2021EA001670 (2021). Article Google Scholar Tanaka, K. L. et al. Geologic Map of Mars: U.S. Geological Survey Scientific Investigations Map 3292 (US Geological Survey, ...
M Osada,K Abe - 《Physics of the Earth & Planetary Interiors》 被引量: 57发表: 1981年 The anomalous wake accompanying bubbles rising in a thin gap: a mechanically forced Marangoni flow A novel wake structure, observed as penny-shaped air bubbles rise at moderate Reynolds number through a th...
1.IntroductionAsaresultofsome~3.3Gazirconagedetendnationsonbiotite-bearingleptiteandtrondhjendticveins,someofthePaleoarchaean(3.6--3.2Ga)supracrustalrocks,whichwerepreviouslyconsideredtobeNeoarchaeanandnowtermedtheChentaigousupracmstal,havebeenrecognized关键词: Chentaigou supracrustal Paleoarchaean Geochemisny...
A north–south-trending belt of amphibolite facies regional metamorphism parallels the Purcell Trench, transects the Kootenay Arc, and is, in part, fault b... DA Archibald,TE Krogh,RL Armstrong,... - 《Can.j.earth Sci》 被引量: 87发表: 1984年 Late Cretaceous volcanic rocks and associated...
Purpose Few studies have described the bacterial community structures of turbid rivers. In this paper, the characteristics of the bacterial community in the water and surface sediment of the Yellow River, China, the largest turbid river in the world, were studied. Materials and methods Water and ...
Intrusive Geotectonics of China[M]. Beijing: Geological Publishing House: 1-583(in Chinese with English abstract). Google Scholar DENG J F, LIU C, DI Y J, et al., 2018. Discussion on the tonalite-trondhjemite-granodiorite (TTG) petrotectonic assemblage and its subtypes[J]. Earth ...
10月14日,国家航天局探月与航天工程中心探月工程三期总设计师胡浩,副总设计师李春来,副总设计师裴照宇,国家天文台研究员李春来,杨孟飞院士,欧阳自远院士等组成的合作团队,在期刊 National Science Review 发表题为 Characteristics of the lunar samples returned by Chang'E-5 mission 的论文。 National Science Review ...