Latest Update 2026/2027 | Graded A+ | 100%
Assured Pass.
If .a .xenolith .included .within .an .igneous .pluton .has .a .numerical .age .of .55
.million .years .(Ma) .old, .what .can .you .infer .about .the .age .of .the .pluton? .- .ANS✓
✓-the .pluton .formed .after .55 .Ma .ago
Radiocarbon .is .first .produced .in .the .______ .when .neutrons .strike .______
.atoms. .- .ANS✓✓-atmosphere; .nitrogen-14
A .minimum .of .______ .seismic .stations .is .necessary .to .determine .the .focus .of
.an .earthquake. .- .ANS✓✓-3
A .volcanic .neck .is .formed .______ .and .the .surrounding .rock .erodes .away. .-
.ANS✓✓-when .a .magma .body .solidifies .within .the .vent .of .a .volcano .and .the
.surrounding .material .is .eroded
Symmetric .anticline .folds .result .from ._____. .- .ANS✓✓-bi-directional .stresses
What .conditions .are .necessary .to .form .oolithic .limestone? .- .ANS✓✓-all .of .the
.above .answers .are .correct; .- .warm .water .conditions
- .active .waves .and .currents
- .shallow .water
- .lots .of .marine .plant .life
Which .seismic .wave .will .be .the .last .to .reach .a .seismic .station .following .an
.earthquake? .- .ANS✓✓-P,S, .surface
In .order .to .relieve .stress .buildup .that .would .cause .a .magnitude .5 .earthquake,
.approximately .how .many .magnitude .4 .earthquakes .would .have .to .occur? .-
, .ANS✓✓-30
Limestone .generally .precipitates .in .deep .ocean .water .because .______? .- .ANS✓
✓-none .of .the .above .answers .are .correct .as .limestone .typically .precipitates .in
.shallow .water
-
As .solids .age, .the .soil .profile .becomes .______. .- .ANS✓✓-all .of .the .answers
.are .correct;
- .thicker
- .redder
- .more .clay .rich
Meandering .streams .deposit .sediment .towards .the .______ .of .the .meander
.where .the .stream .velocity .is .______ .- .ANS✓✓-inside; .lower
Soil .profiles .can .form .______. .- .ANS✓✓-only .answers .a .and .b .are .correct; .
- .in .residual .bedrock
- .in .unconsolidated .sediment
Monuments .and .hoodoos .form .______. .- .ANS✓✓-a .resistant .cap .rock .that
.protects .the .underlying .weaker .rock .from .weathering .and .erosion
Frost .wedging .occurs .in .rock .because: .- .ANS✓✓-water .expands .when .it
.freezes .to .form .ice
The .ripples .shown .below .are .______ .and .are .formed .from ._____. .-
.ANS✓✓asymmetric; .wind .or .water .currents
The .strike-slip .fault .shown .below .is .______. .- .ANS✓✓-right .lateral
How .might .you .recognize .that .a .disconformity .exists .within .layered
.sedimentary .of .rock? .- .ANS✓✓-answers .a .and .d .are .both .correct; .
- .you .might .observe .a .buried .soil .or .weathering .zone .between .the .two .units
- .you .might .observe .fossils .assemblages .that .have .large .age .differences
.between .the .two .rock .units