index material

Answer:

A mineral that is a good indicator of the metamorphic environment in which it formed. Used to distinguish different zones of regional metamorphism.

playas

Answer:

A lake where water is evaporated part of the year and drys up leaving salt

eolian sediment

Answer:

Sediment that is carried and deposited by the wind.

calcareous ooze

Answer:

Ooze composed of mostly the hard remains of organisms containing calcium carbonate

siliceous ooze

Answer:

biogenous sediment composed of the silica based shells of single-celled animals and algae

rift valleys

Answer:

A linear, fault-bounded valley along a divergent plate boundary or spreading center

accretionary wedges

Answer:

Wedge shaped accumulations of volcanicclastic sediment scraped of the subduction plate in thick slabs, seperated by thrust faults, which pile up like a stack of playing cardson the overriding plate

opiolites

Answer:

fragments of lithosphere incorporated into the melange of accretionary wedges

bedding surfaces

Answer:

The top or bottom surface of a rock stratum or bed.

conner

Answer:

The coolest kid on the planet!