tephrochronology मीनिंग इन हिंदी

उदाहरण वाक्य

1. Tephrochronology approximates the volcano's last eruption as 3500 BC.
2. Tephrochronology requires accurate geochemical fingerprinting ( usually via an electron microprobe ).
3. The sedimentary succession was studied through isotope analysis, diatoms, organic geochemistry, and tephrochronology.
4. Since the volcano's earlier eruptions are not recorded, volcanologists have used tephrochronology to date them.
5. One problem in tephrochronology is that tephra chemistry can become altered over time, at least for basaltic tephras.
6. Because it was found between two layers of ash, it has been dated by tephrochronology to at least 230, 000 years before the present.
7. He was the first to receive the award of Steno Medal in 1969 by the Geological Society of Denmark for his work with volcanology and tephrochronology.
8. The use of tephra layers, which bear their own unique chemistry and character, as temporal marker horizons in archaeological and geological sites is known as tephrochronology.
9. In stratigraphy and tephrochronology, completely devitrified ( weathered volcanic glass ) ash-fall beds are commonly referred to as K-bentonites when the dominant clay species is illite.
10. He is considered a pioneer in the field of tephrochronology, and he made significant contributions in many areas of geology, especially volcanology and glaciology, both in Iceland and abroad.