Detriral Sedrock

Question 1

Grabau name of gravelstone

Answer 1

Rudite

Question 2

Grabau name of sandstone

Answer 2

Arenite

Question 3

Grabau name of mudrock

Answer 3

Lautite

Question 4

Sedimentary rocks made up of gravel-sized sediments.

Answer 4

Gravelstone

Question 5

Gravelstones that are
made up of rounded sediments.

Answer 5

Conglomerate

Question 6

Gravelstones that are made up of angular sediments.

Answer 6

Breccia

Question 7

Brecia is also called as

Answer 7

Rudite

Question 8

Gravelstones with an interior source, eroding from the same source

Answer 8

Intraformational

Question 9

Gravelstones with composition derived outside of depositional basin,

Answer 9

Extraformational

Question 10

Clast-
supported conglomerates.

Answer 10

Orthoclonglomerate

Question 11

Matrix-
supported conglomerates.

Answer 11

Paraclonglomerate

Question 12

Describes gravelstones with more than 90% of the framework clasts consisting of a single or few resistant rocks and/or minerals.

Answer 12

Oligomict

Question 13

Describes
gravelstones with clasts of
different compositions that are PRONE to weathering and erosion.

Answer 13

petromict

Question 14

Describes gravelstones with clasts composed
of single composition

Answer 14

Monomictic

Question 15

Describes gravelstones with clasts
composed of about 2-4 different types of parent rocks.

Answer 15

Diamictic

Question 16

Describes
gravelstones with clasts with numerous amounts of types of composition

Answer 16

Polymictic

Question 17

gravelstone composed of lithified colluvium deposited from mass wasting.

Answer 17

Diamictite

Question 18

Sedimentary rocks made up of sand-sized sediments.

Answer 18

Sandstone

Question 19

It is used to classify sandstone

Answer 19

Pettijohn Sandstone Classification.

Question 20

Sandstones with
significant amount of feldspars.

Answer 20

Arkose

Question 21

Sandstones with
significant amount of mud matrix.

Answer 21

Wacke

Question 22

An older, general term for matrix-rich sandstone.

Answer 22

Graywacke

Question 23

Sedimentary rocks made up of mud-sized sediments.

Answer 23

Siltstone

Question 24

Mudrocks that are made up of silt-sized sediments.

Answer 24

Lutite

Question 25

Mudrocks that are made up of clay-sized sediments.

Answer 25

Claystone

Question 26

A type of mudrock the shows distinct layering.

Answer 26

Shale

Question 27

Banding observed among mudrocks where they tend to break.

Answer 27

Fissility

Question 28

Smectite-rich claystones that formed from the alteration of volcanic ash deposits from explosive eruptions.

Answer 28

Bentonite