相关实验视频

Updated: Jul 2, 2026

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod
06:06

Sediment Core Extrusion Method at Millimeter Resolution Using a Calibrated, Threaded-rod

Published on: August 17, 2016

评论"从海洋同位素记录中确定体冲击器尺寸"

Joanna V Morgan1

  • 1Earth Science and Engineering, Imperial College London, South Kensington Campus, London SW7 2AZ, UK. j.morgan@imperial.ac.uk

Science (New York, N.Y.)
|August 30, 2008
PubMed
概括

在海洋沉积物中同位素的比率可以估计冲击器的大小. 然而,撞击器材料在海水中溶解的部分是很小和不可预测的,需要重新评估之前的假设.

更多相关视频

In Vitro Impact Model to Generate Sublethal Chondrocyte Injury in Bovine Cartilage Explants06:42

In Vitro Impact Model to Generate Sublethal Chondrocyte Injury in Bovine Cartilage Explants

Published on: June 27, 2025

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions11:50

Metal-silicate Partitioning at High Pressure and Temperature: Experimental Methods and a Protocol to Suppress Highly Siderophile Element Inclusions

Published on: June 13, 2015

相关概念视频

Mass Spectrometry: Isotope Effect01:13

Mass Spectrometry: Isotope Effect

Most elements exist in nature as a mixture of isotopes. The isotopes differ in weight due to their respective number of neutrons. The molecular weight of a molecule is different depending on the specific isotope of its elements involved. As a result, the mass spectrum of the molecule exhibits peaks from the same fragment at multiple positions. The positions of these mass signals depend on the mass differences between isotopes. Furthermore, the intensity of these signals is dependent on the...