The inner core of the Earth is mainly composed of _. A. molten rock B. solid iron and nickel C. gas D. water 相关知识点: 试题来源: 解析 B。解析:地球的内核主要由固态的铁和镍组成。选项A,熔融的岩石主要存在于地幔中,而非内核;选项C,地球内核不是由气体组成的;选项D,水不可能是地球内核的...
Earth's inner coreGeophysical and cosmochemical constraints suggest the inner-core is mainly composed of iron with a few percent of light elements. However, despite extensive studies over many years, no single alloying light-element has been found that is able to simultaneously match the observed ...
Then, using geodynamic growth models and mineral physics calculations, we simulate the development of inner-core anisotropy in a self-consistent manner. From this we find that an inner core composed of hexagonally close-packed iron–nickel alloy, deformed by a combination of preferential equatorial ...
“Our results suggest the outer inner core is composed of iron crystals of a single phase with different degrees of preferred alignment along Earth’s spin axis,” Sun said. “The inner inner core may be composed of a different phase of crystalline iron or have a different pattern of...
The inner core of bacteriophage φ8 is capable of packaging and replicating the plus strands of the RNA genomic segments of the virus in vitro. The particles composed of proteins P1, P2, P4, and P7 can be assembled in cells of E. coli that carry plasmids with cDNA copies of genomic segm...
Núcleo interno是将“inner core"翻译成 加利西亚文。 译文示例:There is an East–West asymmetry in the inner core seismological data. ↔ Hai unha asimetría leste-oeste nos datos sismolóxicos do núcleo interno. inner core noun 语法 The innermost part of the Earth. [..] + 加 英文...
The inner core was discovered in 1936 by Inge Lehmann and is generally believed to be composed primarily of iron and some nickel. 固体内核是由英格·莱曼在1936年发现的,成分主要是铁和镍。 WikiMatrix Tropical Storm Jeanne remained over Puerto Rico for about eight hours, during which it maint...
An existing foam inner core of an upholstery for seating and / or reclining furniture has recesses.; In order to improve the sleep comfort and ventilation of the interior, the inner core is composed of wave-shaped longitudinal and transverse webs (1,2,3), and the waves of the longitudinal...
Earth’s Inner Core Scientists have long struggled to understand what lies at the planet’s center. Direct observation of its center is impossible, so researchers must (1) to other evidence. In 1889, a German scientist detected a severe earthquake in Japan. Geophysicists concluded that shock wav...
Support for the theory that the core is composed of iron (85 percent) with lesser amounts of nickel has come from the study of meteorites. Many of these samples of solar system materials are iron meteorites that consist of metallic iron alloyed with a small percentage of nickel. Some geologi...