Sedimentology and Stratigraphy Sample Questions SECTION I 1) A sandstone has the following characteristics. Composition 40% quartz; 30% K-spar; 27% rock fragments (fragments include: rhyolite(20%); quartz arenite(6%), and limestone(1%); 2% accessory miner
1. Which ones of the following statements are CORRECT about beach?
a. Where it develops, the tidal range is usually large (4m)
b. It is best developed on wave-dominated coasts
c. The sediment on beach are relatively mature and well-sorted
1. Which one(s) of the following systems belong to continental (terrestrial)
a. glacier system
b. eolian system
c. fluvial system
d. lacustrine system
2. Which ones of the following statements are CORRECT a
1. Which of the following statements are CORRECT about weathering?
a. Weathering only occur in subaerial condintion
b. Olivine weathers slower than quartz
c. Long-term weathering up to a few thousands of years may produce a soil
profile with severa
1. Which ones of below are sedimentary rocks?
a. Carbonate formed 300 Ma ago
b. Barnett Shale
2. Which of the followings are physical weathering processes?
a. Rock breakdown by dissolution of salt in pore space
b. Rock breakdown by thermal heating
What is the median of the samples grain size?
a. 1.7 Phi
Which of the following is the grain size range for sand?
a. 2-4 mm
b. 2-256 mm
c. 0.002-0.0625 mm
d. 0.0625-2 mm
Which of the following statem
Which of the following statements is (are) correct about
a. The matrix of cobble conglomerate contains granules
b. They can be formed by processes not related to sedimentation
c. 30% of the grains are lar
1. Transport processes on the continental shelf include_.
a. Sediment plumes
b. Fair weather waves and storm waves
d. Wind-forced currents, like longshore drift
2. Which of the following aspects can be used to recognize
In order to be called a conglomerate/breccia, a rock needs to have more than
_ of gravel in composition
Which of the following are correct about matrix and cement
a. They can occur in conglomerate
1. Which of the following statements are CORRECT about particle settling?
a. Stokess Law predicts the settling velocity of grains <0.1-0.2 mm in water
b. Stokes's Law overestimates the settling velocity of larger particles
c. When flow sl
1. Which of the following sedimentary structures are typical
of wave process?
a. Flaser-wavy-lenticular bedding
b. Hummocky cross-stratification
c. Symmetrical ripple cross-lamination
d. Swaley cross-stratification
2. Which of the following aspects
Sedimentology and Stratigraphy Laboratory Exercise 1b Sediment Textures by Touch Purpose: To acquaint you with techniques and criteria for field categorization of sedimentary textures based on relative percent of silt, clay, and sand. Procedure: Commonly,
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