ASBOG- FG Exam Questions and Answers Latest Update 2025 Already Passed
Cirques - Answers bowl-shaped depressions that may be left on mountains after glaciers have melted
Kames - Answers a steep-sided mound of sand and gravel deposited by a melting ice sheet.
Aretes - Answers
Drumlins - Answers a long, canoe shaped hill made of till and shaped by an advancing glacier
A rock described as arkosic - Answers Is sandstone containing >/ to feldspar
Arkose is a type of detrital sedimentary rock that contains at least 25% feldspar.
If the scale of a map is 1:24,000, then 1 inch on the map represents __________ feet on Earth's surface.
- Answers 2,000 feet
what two-letter symbol is commonly used for a fat clay? - Answers CH
For a dip-slip fault- what is the area above the fault plane known as? - Answers Hanging wall
U-Pb dating - Answers Zircon grains. A technique that can date igneous materials that are millions to
billions of years old with high precision.
K-Ar dating - Answers
Rb-Sr Dating - Answers
Sm-Nd dating - Answers
Which tectonic environment is most likely to include normal faults? - Answers Mid-ocean ridges are
plate boundaries where oceanic plates diverge from each other, so they are regions of normal faulting.
Which tectonic environment is most likely to include thrust faults? - Answers Subduction zones are
dominantly regions of thrust faulting
Which tectonic environment is most likely to include strike-slip faults? - Answers Transform plate
boundaries
Which tectonic environment is most likely regional-scale faulting? - Answers Mantle hot spots
Which of the following up-section sequences is the clearest example of a marine transgression? -
Answers Marine transgressions are represented by stratigraphic sequences that reflect an up-section
change to deeper water conditions. Fluvial sands may be deposited above sea level, beach sands are
deposited at sea level, shoreface deposits occur immediately off shore, and open-shelf carbonate is
deposited in the shallow sea.
, Fluvial sand, beach sand, shoreface deposits, open shelf carbonate represents a continuous up-section
change to a deeper water environment.
Which of the following minerals is NOT normally associated with hydrothermal alteration? - Answers
Olivine is not typically formed through hydrothermal alteration but rather through magmatic processes.
Epidote, Pyrite, and Hematite are minerals associated with hydrothermal alteration.
What is a sandstone with >90% detrital quartz? - Answers Quartz arenite.
Feldspathic Arenite - Answers <90% quartz
Lithic Arentie - Answers contains significant proportion of lithic fragments
Volcaniclastic - Answers clastic rock that contains volcanic fragments
subduction zone - Answers in tectonic plates, the site at which an oceanic plate is sliding under a
continental plate. Therefore creating continental crust.
mid-ocean ridge - Answers An underwater mountain chain where new ocean floor is formed. Therefore
new oceanic crust is created.
back-arc basin - Answers a marine basin, such as the Sea of Japan, that lies between a volcanic island arc
and a continent.
Therefore new oceanic crust is created.
transform plate boundary - Answers Boundary between two plates that are sliding past each other.
what type of acid is characteristic of acid mine drainage? - Answers sulphuric
What type of fault has the steepest dip? - Answers Strike-slip have near-vertical dips.
Thrust faults have shallower dips <20 than reverse faults.
Normal faults range 10 to 60 degrees.
normal fault - Answers A type of fault where the hanging wall slides downward; caused by tension in the
crust
reverse fault - Answers a type of fault where the hanging wall slides upward; caused by compression in
the crust
thrust fault - Answers Low angle reverse fault
Cirques - Answers bowl-shaped depressions that may be left on mountains after glaciers have melted
Kames - Answers a steep-sided mound of sand and gravel deposited by a melting ice sheet.
Aretes - Answers
Drumlins - Answers a long, canoe shaped hill made of till and shaped by an advancing glacier
A rock described as arkosic - Answers Is sandstone containing >/ to feldspar
Arkose is a type of detrital sedimentary rock that contains at least 25% feldspar.
If the scale of a map is 1:24,000, then 1 inch on the map represents __________ feet on Earth's surface.
- Answers 2,000 feet
what two-letter symbol is commonly used for a fat clay? - Answers CH
For a dip-slip fault- what is the area above the fault plane known as? - Answers Hanging wall
U-Pb dating - Answers Zircon grains. A technique that can date igneous materials that are millions to
billions of years old with high precision.
K-Ar dating - Answers
Rb-Sr Dating - Answers
Sm-Nd dating - Answers
Which tectonic environment is most likely to include normal faults? - Answers Mid-ocean ridges are
plate boundaries where oceanic plates diverge from each other, so they are regions of normal faulting.
Which tectonic environment is most likely to include thrust faults? - Answers Subduction zones are
dominantly regions of thrust faulting
Which tectonic environment is most likely to include strike-slip faults? - Answers Transform plate
boundaries
Which tectonic environment is most likely regional-scale faulting? - Answers Mantle hot spots
Which of the following up-section sequences is the clearest example of a marine transgression? -
Answers Marine transgressions are represented by stratigraphic sequences that reflect an up-section
change to deeper water conditions. Fluvial sands may be deposited above sea level, beach sands are
deposited at sea level, shoreface deposits occur immediately off shore, and open-shelf carbonate is
deposited in the shallow sea.
, Fluvial sand, beach sand, shoreface deposits, open shelf carbonate represents a continuous up-section
change to a deeper water environment.
Which of the following minerals is NOT normally associated with hydrothermal alteration? - Answers
Olivine is not typically formed through hydrothermal alteration but rather through magmatic processes.
Epidote, Pyrite, and Hematite are minerals associated with hydrothermal alteration.
What is a sandstone with >90% detrital quartz? - Answers Quartz arenite.
Feldspathic Arenite - Answers <90% quartz
Lithic Arentie - Answers contains significant proportion of lithic fragments
Volcaniclastic - Answers clastic rock that contains volcanic fragments
subduction zone - Answers in tectonic plates, the site at which an oceanic plate is sliding under a
continental plate. Therefore creating continental crust.
mid-ocean ridge - Answers An underwater mountain chain where new ocean floor is formed. Therefore
new oceanic crust is created.
back-arc basin - Answers a marine basin, such as the Sea of Japan, that lies between a volcanic island arc
and a continent.
Therefore new oceanic crust is created.
transform plate boundary - Answers Boundary between two plates that are sliding past each other.
what type of acid is characteristic of acid mine drainage? - Answers sulphuric
What type of fault has the steepest dip? - Answers Strike-slip have near-vertical dips.
Thrust faults have shallower dips <20 than reverse faults.
Normal faults range 10 to 60 degrees.
normal fault - Answers A type of fault where the hanging wall slides downward; caused by tension in the
crust
reverse fault - Answers a type of fault where the hanging wall slides upward; caused by compression in
the crust
thrust fault - Answers Low angle reverse fault
