2006-09-10 16:32:36 · 10 answers · asked by mscoco 1 in Science & Mathematics ➔ Earth Sciences & Geology
While layering is very common, it is not present in every sedimentary rock. Chalk, for example, is not very layered, and many limestomes and mudstones do not show good layering.
There is no single characteristic of all sedimentary rocks that is shared, but the two major, distinct groups have common characteristics.
Clastic sedimentary rocks are made of particles, ranging in size from microns to meters. This covers your standard conglomerates, sandstones, shales, and most limestones.
Chemical sedimentary rocks are made of precipitates, and are generally very fine grained. This covers evaporates and some limestones.
If you consider precipitates as sedimentary particles in solution, then the one characteristic is 'made out of particles.'
2006-09-11 05:46:24 · answer #1 · answered by QFL 24-7 6 · 0⤊ 0⤋
When I look at a sedimentary rock the first thing I try to determine is grain size.
2006-09-12 17:08:34 · answer #2 · answered by Amphibolite 7 · 0⤊ 0⤋
Some Common Sedimentary rocks
Sanstone color: red or gray, composition : sand grains cemented together
Limestone : white to gray, calcite and sometimes fossils
Shale: Dark Gray, Compacted mud.
Conglomerate: Different Colors, Rounded cobbles and pebbles cemented
together
2006-09-10 23:51:14 · answer #3 · answered by Karina Maq 2 · 0⤊ 1⤋
They are found in layers and they are the only type of rock that contains fossils.
2006-09-10 23:42:12 · answer #4 · answered by cushdogjr 3 · 0⤊ 0⤋
The apprearance of layers. Like on a shell.
2006-09-10 23:40:38 · answer #5 · answered by Wifey 1 · 0⤊ 0⤋
Foliation, called banding or layering
2006-09-10 23:36:54 · answer #6 · answered by jimmy a 3 · 1⤊ 2⤋
layers, as you find near beaches.
2006-09-11 02:11:08 · answer #7 · answered by shariffkhayum 2 · 0⤊ 1⤋
you'll find them in layers.
2006-09-10 23:38:18 · answer #8 · answered by Anonymous · 1⤊ 0⤋
They are kind of quiet.
They don't talk much.
.
2006-09-10 23:37:52 · answer #9 · answered by Anonymous · 0⤊ 1⤋
they are lazy rocks.
2006-09-10 23:38:00 · answer #10 · answered by Anonymous · 0⤊ 1⤋