The Mesozoic diabase dikes of Liberia are tholeiites whose 87Sr/86Sr and 87Rb/86Sr ratios scatter widely on the Rb-Sr isochron diagram. The problem is attributed to differences in the initial 87Sr/86Sr ratios of these rocks which range from 0.70311 to 0.70792, assuming a uniform age of 186Ma for the
The isotopic composition of oxygen and hydrogen in some brines from the mesozoic in North-west Poland
β Scribed by I. Dowgiallo; E. Tongiorgi
- Book ID
- 107970696
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 220 KB
- Volume
- 1
- Category
- Article
- ISSN
- 0375-6505
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract To clarify the processes of atmospheric water vapour transport to the northern part of the North China Plain (NCP), isotopic variations in precipitation are investigated. Pattern of seasonal variation in the isotopic composition of precipitation over China can be classified into three t
Carbon and oxygen isotopic analyses have been carried out on carbonates from laves, ejectites and sedimentary formations in the region of the Alban Hills. The calcite occurring in the laves, both in veins and cavities and dispersed in the groundmass shows within each flow a fairly uniform isotopic