Answer the following questions:
Q 1: Write ( √ ) or ( × ) on the following
statements, and correct the "wrong" word(s):
1)
Illite has a two-layered structure with potassium
ions in interlayer positions ( )
2)
Litharenite is
immature sediment that transported for a short distance. ( )
3)
Fine skewed
sediment is composed of coarse grains ( )
4)
Neoformation of
clay minerals is their transformation from inherited clays ( )
5)
Primary porosity
develops in sandstone during diagenesis by solution ( )
6)
A prolate shaped
gravel grain has length more than short diameter (
)
7)
Cataclastic
breccia is formed due to shattering of rock owing to meteorite impact ( )
8)
Resting trace
fossils are formed by animal seeking foods (
)
9)
Monocrystalline
quartz grains with unit extinction indicate volcanic origin ( )
10)
Graded bedding
can be used as a paleocurrent and a way-up indicators ( )
Model Answer of Question No. 1
1)
Illite has a two-layered structure with potassium
ions in interlayer positions (× )
2)
Litharenite is
immature sediment that transported for a short distance. (√ )
3)
Fine skewed
sediment is composed of coarse grains (× )
4)
Neoformation of
clay minerals is their transformation from inherited clays (× )
5)
Primary porosity
develops in sandstone during diagenesis by solution (× )
6)
A prolate shaped
gravel grain has length more than short diameter (√ )
7)
Cataclastic
breccia is formed due to shattering of rock owing to meteorite impact (× )
8)
Resting trace
fossils are formed by animal seeking foods (× )
9)
Monocrystalline
quartz grains with unit extinction indicate volcanic origin (√ )
10)
Graded bedding
can be used as a paleocurrent and a way-up indicators (× )
Q 2: Choose the correct word
between brackets:
1) …………………… consist of a rounded
upstream end, which flares downstream and merges into the bedding plane (Flute marks, scour marks, bounce
marks)
2) Polycrystalline, elongated
quartz grains indicate ………………….. source
rock
(volcanic,
metamorphic, hydrothermal)
3) Very fine grains (dust) is moved
by strong eddies as (saltation, suspension, rolling)
4) Quartzose diamictite is composed
of ………………… unstable clasts (90%, 10%, 50%)
5) In alkaline, oxidizing
condition, iron is present as ………………….. (ferrous, ferric, not existed), that
give ……………………. (red, green, blue) color to the rock/sediment.
Model Answer of Question
No. 2:
1) …………………… consist of a rounded
upstream end, which flares downstream and merges into the bedding plane (Flute marks, scour
marks, bounce marks)
2) Polycrystalline, elongated
quartz grains indicate ………………….. source
rock
(volcanic, metamorphic,
hydrothermal)
3) Very fine grains (dust) is moved
by strong eddies as (saltation, suspension,
rolling)
4) Quartzose diamictite is composed
of ………………… unstable clasts (90%, 10%, 50%)
5) In alkaline, oxidizing
condition, iron is present as ………………….. (ferrous, ferric, not
existed), that give ……………………. (red, green, blue) color to the
rock/sediment.
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