Correlation Course Day 1 Flashcards
The assemblage of albite, chlorite, actinolite, and calcite would be most characteristic of the
greenschist facies
___________ is now used as an industrial substitute for asbestos.
Wollastonite
A well fully penetrates a confined aquifer and has a drawdown of 27 feet. The theoretical drawdown calculated from a distance-drawdown curve is 18 feet. What is the well efficiency?
67%
A braided stream usually indicates that the stream:
has greater load than capacity
Which deposit is most closely associated with rare earths?
a fissure vein of gold-quartz
The in-place granular disintegration product of granite is called:
grus
Interpretation of stereo-paired aerial photographs is NOT helpful when evaluating a site for:
a. high ground water conditions
b. landslide hazards
c. potential groundwater contaminant sources
d. contaminant plume migration in a confined aquifer
d. contaminant plume migration in a confined aquifer
Which of the following instrument types is NOT appropriate for measuring differential movement across a landslide slip surface?
a. linear variable differential transformers
b. load cells
c. extensometer
d. inclinometer
d. inclinometer
In an unconfined aquifer what would the specific yield be if the porosity was 0.3 and the effective porosity was 0.18?
0.18
Given 0.65 ft^3 of a soil sample weighing 36.2 lbs, with a moisture content of 15% what is the dry density of the soil?
a. 64.0 lbs/ft^3
b. 48.4 lbs/ft^3
c. 47.3 lbs/ft^3
d. 30.77 lbs/ft^3
What geophysical technique would you use to investigate a skarn?
magnetics
Caves found within limestone result from:
slowly circulating water below the water table
plagioclase,quarz,biotite, hornblende would most likely be found in a;
dacite
what are oscillatory waves in inland bodies of water called?
seiches
convergent plate margins are characetrized by
melanges of feldspathic sandstone, siltstone and shale
sphalerite, willemite, and smithsonite are all;
zinc ores
Given a bed with an orientation of N65 degrees W, 25 degrees S, what is the corresponding atttitude?
25 degrees , S25 degrees W
A soil material with a porosity of 50% would
be classified as CL
As defined by Richter on a Wood-Anderson seismograph, what is the difference in amplitude between a magnitude 6 and 8 earthquake?
100
what would NOT be the expected origin of a mercury deposit?
a. epithermal
b. elastic sedimentation
c. weathering
d. volcanogenic
c. weathering
What type of water has never been circulated in the hydrologic cycle?
a. connate
b. fossil
c. confined
d. juvenile
d. juvenile
Which of the following is NOT true of a sedimentary facies?
a. mineralogy, grain size and color can vary laterally
b. lithofacies and biofacies are two aspects of sedimentary facies that may not result in the same classification
c. fossil remnants will be consistent throughout the facies
d. the subdivision of a sedimentary unit can be based on the biofacies without concern for the lithology
c. fossil remnants will be consistent throughout the facies
Settlement calculations are based on data obtained from which of these laboratory test?
a. direct shear
b. permeability
c. consolidation
d. compaction
c. consolidation
Name three main physical properties of rocks which are logged by wirelines
electrical, nuclear, acoustic