Geochronological and isotopic evidence for early Proterozoic crust in the eastern Arabian Shield
Geology
By: J. S. Stacey and C. E. Hedge
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Abstract
We report zircon U-Pb, feldspar common Pb, whole-rock Sm-Nd, and Rb-Sr data from sample Z-103, a fine-grained granodiorite from the Jabal Khida region of the Saudi Arabian Shield (lat 21°19′N; long 44°50′W). The measurements yield conclusive evidence for continental crust of early Proterozoic age (∼1,630 Ma) at that locality. Furthermore, lead-isotope data indicate an even earlier, perhaps Archean, crustal history for the source of the lower Proterozoic rocks.
Suggested Citation
Stacey, J.S., Hedge, C., 1984, Geochronological and isotopic evidence for early Proterozoic crust in the eastern Arabian Shield: Geology, v. 12, no. 5, p. 310-313, https://doi.org/10.1130/0091-7613(1984)12<310:GAIEFE>2.0.CO;2.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | Geochronological and isotopic evidence for early Proterozoic crust in the eastern Arabian Shield |
| Series title | Geology |
| DOI | 10.1130/0091-7613(1984)12<310:GAIEFE>2.0.CO;2 |
| Volume | 12 |
| Issue | 5 |
| Year Published | 1984 |
| Language | English |
| Publisher | Geological Society of America |
| Description | 4 p. |
| First page | 310 |
| Last page | 313 |