"We were excited to be able to show, for the first time, that the duration of an orogenic' cycle [burying, then bringing rocks to the surface] is much shorter than was previously believed – only ...

The accumulation of the mio-eugeosynclinal couplet requires diastrophic quiescence except for isostatic depression. The orogenic or alpine mountain-building cycle is initiated by thrusting probably ...

These new geochronologic data record three protracted orogenic episodes and an exhumation event between orogenic pulses: (1) Yavapai orogeny (1741–1689 Ma), (2) exhumation marked by an angular ...

From research at Donlin and Flat in the 1980s and 1990s, to shaping global theories on orogenic gold formation, Rich has helped define how the modern exploration industry approaches gold discovery.