If a passive margin is near a large river system, the sedimentary rocks deposited there will be detrital: sandstones and shales from the sediments carried by the river. The sedimentary environments ...

Detrital Zircon Geochronology: A method used to date sedimentary rocks by analyzing zircon minerals within them, which can provide information about the age and source of the sediments.

Figure 1: Eocene sedimentary rocks record a period of widespread basin formation and filling linked to metamorphic core complex exhumation (Deer Lodge Valley) and episodic collapse of structural ...