Sed Texture

Question 1

A classification scheme that describes sediments’ particle sizes in epiclastic rocks.

Answer 1

Grain size

Question 2

Used to measure the grain size

Answer 2

Udden-Wentworth Scale.

Question 3

is the component of detrital sedimentary rocks that have particles sizes from sand to gravel.

Answer 3

Clast

Question 4

Coarse fraction

Answer 4

Clasts

Question 5

the mud-sized particles component of detrital sedimentary rocks.

Answer 5

Matriz

Question 6

fine fraction

Answer 6

Matriz

Question 7

A measure of particle population in an attempt to represent the typical particle size in the population.

Answer 7

Central measure

Question 8

A bar graph that shows the weight percentage vs. phi values of clasts.

Answer 8

Histogram

Question 9

A line graph that shows the weight percentage vs. phi values of clasts.

Answer 9

Frequency curve

Question 10

A line graph that shows the cumulative weight percent of all size coarser than, including the phi size fraction under consideration, are plotted against phi size classes.

Answer 10

Cumulative curve

Question 11

The most abundant particle size.

Answer 11

Mode

Question 12

The average diameter of
the particles,

Answer 12

Graphic geometric mean

Question 13

A method of passing
soil and sediment samples through a series of stacked mesh to determine the distribution of grain sizes.

Answer 13

Sieving

Question 14

Determines or gives information regarding the nature or maturity of a grain.

Answer 14

Grain shape

Question 15

Spheroid particles that have similar dimensions in all directions.

Answer 15

Equatant

Question 16

Rod-shaped particles that have an elongate cylindrical that have on axis much longer than the other two.

Answer 16

Prolate

Question 17

Disk-shaped particles that have a flattened cylindrical or disk-like shape where two axes are shorter than the other.

Answer 17

Oblate

Question 18

Particles that have a flattened shape where the three axes have three different lengths.

Answer 18

Bladed

Question 19

The distribution of grain sizes present within a sedimentary rock.

Answer 19

Sorting

Question 20

A quick method of determining the phi size value for any percentile,

Answer 20

Sorting coefficient

Question 21

The volume of void space in a sedimentary rock.

Answer 21

Porosity

Question 22

The arrangement of grains in a rock.

Answer 22

Packing density

Question 23

The extent of how much sedimentary rock has undergone change starting from its parent material(s).

Answer 23

Maturity

Question 24

The degree of maturity that can indicate a sedimentary rock’s transportation history.

Answer 24

Textural maturity

Question 25

The degree of maturity that measures the amount of components present.

Answer 25

Compositional maturity