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orogen
[ awr-uh-jen, -juhn, ohr- ]
noun
- an extensive belt of rocks deformed by orogeny, associated in places with plutonic and metamorphic rocks.
Example Sentences
A new Paleoproterozoic tectonic history of the eastern Capricorn Orogen, Western Australia, revealed by U-Pb zircon dating of micro-tuffs.
The Orogen Group, an investment firm headed by the former bank executive, is committing $100 million in equity to Fair Square Financial LLC, the two companies are expected to announce on Monday.
Orogen’s investment comes two years after private-equity firm Pine Brook Partners committed $200 million to Fair Square.
“There is private equity — a lot of it — and it’s happening everywhere,” said Vikram Pandit, a former Citigroup chief executive who is now head of The Orogen Group, which invests in financial businesses.
As part of a pilot study, we found clasts with ages of 1,100 million, 1,460 million, 1,580 million and 1,880 million years, along with a slew of Ross Orogen igneous and metamorphic rocks dating to about 500 million years ago.
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