QUESTIONS AND CORRECT
ANSWERS 2026 VERIFIED A+
◉ Nonconformity.
Answer: metamorphic or igneous rocks overlain by sedimentary strata
◉ paraconformity.
Answer: uncomformity is parallel to the strata above and below
◉ disconformity.
Answer: strata above and below are parallel but unconformity is not
◉ Unconfined Aquifer Storativity Values.
Answer: 0.01 to 0.03
◉ Confined Aquifer Storativity Values.
Answer: 0.001 to 0.00001
◉ Hydraulic Conductivity of Unconsolidated Sand.
Answer: 10 to 10^5 gpd/ft^2
◉ Hydraulic Conductivity of Silt.
Answer: 10^-2 to 10^2 gpd/ft^2
,◉ Hydraulic Conductivity of Gravel.
Answer: 10^4 to 10^7 gpd/ft^2
◉ Spontaneous Potential Logs.
Answer: Changes in electric potential downhole indicate change in
stratigraphy, formation water, bed thickness. Left (-) Right (+)
◉ Resistivity Logs values in water bearing rocks.
Answer: 1 to 10^5 ohm-m
◉ Resistivity Logs increase direction.
Answer: Left to Right increase in R
◉ Neutron Logs measure.
Answer: Water Content, Relative Porosity
◉ Neutron Logs increase direction.
Answer: Water Content increases to the Left
◉ A lower resistivity values means the formation is.
Answer: More porous and saline
, ◉ Gamma Ray Logging helps ID.
Answer: Shale
◉ Gamma Ray logging is used extensively in what industry.
Answer: Ground Water
◉ Snell's Law is used for.
Answer: Calculating Seismic Refraction
◉ Snell's law relates.
Answer: Angle of incidence to angle of refraction to determine wave
velocities
◉ v = x/t.
Answer: Simplified Snell's law for single strat layer
◉ Gravity Surveys and calculations require what correction?.
Answer: Bougher Anomaly
◉ Auger Borings can reach what depths?.
Answer: 200 ft
◉ In an SPT, what term is used for coarse-grained materials?.