geochronometer
名词 n.
英文释义
名词 n.
-
Any of several techniques used to measure the age of rock, especially any technique of radiometric dating, the measuring of the relative abundance of particular radioactive or radiogenic isotopes in order to evaluate the progress of radioactive decay.
— Application of the K-Ca geochronometer therefore is best suited to minerals with high K/Ca ratios (Marshall & DePaolo, 1982) and K-bearing clay materials might appear to be amenable to its use.
-
Any of several crystalline minerals that remain stable over geologic time and that when formed contained radioisotopes whose abundance relative to their decay products can be measured to calculate the age of the crystal (and thus that of the surrounding rock).
— K-bearing minerals such as biotite, sanidine, plagioclase, and hornblende are geochronometers representative of the time of their crystallization once they were erupted from a volcano, and then transported into marine sedimentary basins.
词形变化
词汇关系
词源
Etymology tree
Pre-Greek der.
Proto-Hellenic *gayader.
Ancient Greek γαῖᾰ (gaîă)clip.
Ancient Greek γῆ (gê)
Ancient Greek -ο- (-o-)
Ancient Greek γεω- (geō-)der.
English geo-
English chronometer
English geochronometer
From geo- + chronometer.
Pre-Greek der.
Proto-Hellenic *gayader.
Ancient Greek γαῖᾰ (gaîă)clip.
Ancient Greek γῆ (gê)
Ancient Greek -ο- (-o-)
Ancient Greek γεω- (geō-)der.
English geo-
English chronometer
English geochronometer
From geo- + chronometer.
0 次浏览
数据来源: Wiktionary