Chapter 6 Worksheet

rock that forms at on near the surface of the Earth in one of several ways; by the cementing together of loose clasts that had been produced by physical and chemical weathering of pre- existing rock
forms from cemented together clasts, solid fragents and grains broken off of per-existing rocks.
consists of shells
consists of carbon- rich relicts of plants or other organism.
is made up of minerals that precipitated directly from water solution.
coarse - grained sedimentary rock consisting almost entirely of quartz.
combination of processes that separate rock or regolith ( surface debris) from its substrate.
a process that takes place in two stages
is the process by which sediment settles out of the transporting medium.
weight of overburden squeezes air or water out from between grains, so the grains can fit together more tightly.
of clasts indicates the proportion of clasts in a rock that are the same size.
coarse sedimentary rock consisting of angular fragments or rock broken into angular fragments by faulting
coarse - grained sedimentary rock consisting of rounded clasts.
A clastic sedimentary rock containing both quartz and feldspar grains
fine - grained sedimentary rock generally comosed of very small quartz grains.
very fine - grained sedimentary rock that breaks into thin sheets.
very fine-grained sedimentary rock that will not easily split into sheets.
shale that contains not only clay but also between 15% and 40% organic material in a form called hergon.
thick salt deposits that form as a consequence of precipiation from salihe water.
differs from limestone in that it contains the minerals dolomite that contain equal amount of calicum and magnesium.
sedimentary rock for surface, features on layers formed during deposition position, and for arrangment of grains.
the boundary between two bed is a bedding - plane; several beds together constitute.
A succession of several layers or beds together.
forms on a bed surface at right angles to direction of current flow.
look like a ripple, only its much larger.
inclined at an angle to the main bedding; cross beds are a reflict of the slip face of dunes or ripples.