| 6248 |
Creator |
b0e9eb49c58c5a8568d7ca6193664618 |
| 6248 |
Creator |
cacb76ae818ff026f97828ea97a0481b |
| 6248 |
Date |
2002-03 |
| 6248 |
Is Part Of |
p00917613 |
| 6248 |
Is Part Of |
repository |
| 6248 |
abstract |
The Late Triassic–Early Jurassic was a time of major global change; however, the fundamental
processes driving these changes are less than clear. We have determined the Re and
Os abundances, and Os isotope compositions, of marine mudrock samples that span the
Triassic-Jurassic boundary in the UK and have established that major isotopic and
geochemical shifts in the composition of seawater took place in the latest Triassic.
We argue that these shifts were caused by the sudden initiation of widespread igneous
activity within the Central Atlantic magmatic province, associated with rifting of
the supercontinent Pangea. The Os isotope composition of seawater responded rapidly
to these events, demonstrating that the seawater Os isotope system has great potential
in identifying the nature and precise timing of major environmental change. |
| 6248 |
authorList |
authors |
| 6248 |
issue |
3 |
| 6248 |
status |
peerReviewed |
| 6248 |
volume |
30 |
| 6248 |
type |
AcademicArticle |
| 6248 |
type |
Article |
| 6248 |
label |
Cohen, Anthony S. and Coe, Angela L. (2002). New geochemical evidence for the
onset of volcanism in the Central Atlantic magmatic province and environmental change
at the Triassic-Jurassic boundary. Geology, 30(3) pp. 267–270. |
| 6248 |
label |
Cohen, Anthony S. and Coe, Angela L. (2002). New geochemical evidence for the onset
of volcanism in the Central Atlantic magmatic province and environmental change at
the Triassic-Jurassic boundary. Geology, 30(3) pp. 267–270. |
| 6248 |
Title |
New geochemical evidence for the onset of volcanism in the Central Atlantic magmatic
province and environmental change at the Triassic-Jurassic boundary |
| 6248 |
in dataset |
oro |