Wenwei W.
Who was one of the only survivors of the St. Pierre Nuee Ardente?
Plutons may be composed of ______ igneous rock
If a horizontal layer of volcanic tephra lies between two horizontal sedimentary strata, the principle by which the relative ages of each of these layers could be determined is…
Besides frost wedging, which of the following are examples of mechanical engineering?
H+ ions utilized in hydrolysis weathering reactions come from?
Over time angular joints will (blank) due to surface weathering?
Frost wedging occurs in rock because?
Joints facilitate weathering because _________
Rivers erosion tends to be greatest ______ fold structure.
The zig zag pattern of rock units than can be observed while flying over Pennsylvania is due to?
What does the presence of goethite tell you about the drainage conditions of the soil?
Where is isostatic recovery from ice loading still occurring today in North America?
Which rock type will tend to produce sinkholes in Florida from solution weathering?
Frost wedging would be most prominent in…
Which soil horizon contains the most organic matter?
Spheroidal weathering occurs because…
Zigzag outcrop patterns are the result of…
Over time angular joints will become rounded due to surface weathering because…
Why does calcium carbonate not accumulate in Puget Lowland soils?
Soil profiles can form…
Which of the following transport agents generally results in cross beds?
Why did the depth of drilling increase on the limestone boulders deposited on the three glacial moraines?
Limestone will tend to precipitate in sea water when?
What test would conclusively tell you that marble and limestone are both composed from the mineral calcite?
Chert generally precipitates in deep ocean water because?
Oolites form from
A tabular intrusive body that is oriented parallel to the existing sedimentary area
Which of the following depositional events generally results in graded beds?
What diagnostic property would you use to determine that the cementing agent within sandstone is Fe2O3?
A sedimentary rock unit with graded beds that fine towards the top would indicate _______.
Topset beds of a delta ______
Clastic sedimentary rocks are subdivided…
Cross-bedding within sediment tends to occur…
What conditions are necessary to from oolitic limestone?
Units E and C are sedimentary rocks. The boundary between unit E and C is known as a…
According to the principle of cross-cutting relationships, the fault F is ________ units D and E.
Which of the geological units is youngest?
Which of the geologic units is the oldest?
If a fault offset a layer of volcanic ash that is 15,000 years old and was buried by a landslide deposit that is radiocarbon dated at 12,000 years old one can infer that the faulting event…
According to the principle of inclusions the closest constraining age for the formation of a conglomerate rock ______
How might you recognize in the field that a disconformity exists between two sequences of rock?
Radiocarbon dating is most useful…
Where is radiocarbon first produced on earth?
The ______ rock is exposed in the center of an eroding anticline
How did geologists determine the exact day of offset on the Cascadia subduction zone in 1700 AD?
Which of the following transport agents generally results in oscillation?
According to the principle of cross-cutting relationships, if a fault is found cutting across sedimentary strata, the reasonable conclusion would be that:
James Hutton recognized ______.
As soils age _______.
Why do geochronologists not use the ratio of C/N to determine the age of organic matter?
If you dated a volcanic rock that unknowingly lost argon through diffusion the resulting potassium-argon age…
According to the principle of inclusions the age of a xenolith found within an intrusive (plutonic) igneous rock (blank)
A minimum (blank) seismic stations are necessary to determine the focus of an earthquake.
If an earthquake occurs, the (blank) waves are the last to arrive at a seismic station.
In order to relieve stress buildup that would cause a magnitude 7 earthquake, approximately how many magnitude 5 earthquakes would have to occur?
. According to the national earthquake hazard map, the Puget Sound region is a (blank) risk region of the nation
What kind of faults bound mountains and valleys of the Basin and Range provinces in Utah and Nevada?
What kind of stress would you expect to cause this type of faulting?
At what kind of plate margin would you expect to find this type of fault?
What hypothesis did we discuss to explain Basin and Range tectonics (i.e. explain why a divergent margin might be forming under Nevada and Utah)?
Overturned folds may evolve into (blank).
Where do earthquakes occur in the Pacific Northwest?
The recurrence interval of large Cascadia subduction zone earthquakes is?
13. The strike-slip fault shown below is…
Which plate boundaries tend to have the deepest focused earthquakes?
In order to relieve stress buildup that would cause a magnitude 6 earthquake, approximately how many magnitude 5 earthquakes would have to occur?
What type of faulting would you expect to dominate the Canadian Rockies or Appalachian Mountains?
What factors influence earthquake intensity?
Tsunamis may be generated…
During offset of the Seattle fault 1100 years ago…
Graded beds are shown in the stratigrphic section below. In which direction does the section get younger?
What order from (first to last) will seismic waves reach a seismic station following an earthquake?
In order to relieve stress buildup that would cause a magintiude 7 earthquake, how many magnitude 4 earthquakes would have to occur?
Strand lines form around Hudson Bay, Canada…
High temperature is conducive to (blank) deformation in rock.
A high strain rate is conducive to (blank) deformation in rock
______ is an example of elastic deformation
The stress rate (blank) the strain rate for elastic deformation
As the Northern Great Lakes isostatically rebound…
High confining pressure is conducive to (blank) deformation in rock.
Which metamorphic rock has been subject to the lowest grade of heat and pressure?
Monocline folds result from?
Which metamorphic rock has been subject to the highest grade of heat and pressure?
Why is quartz the most common mineral found in beach sand around Puget Sound?
Which mineral group accounts for most of our extractable source or iron ore deposits in the world?
Why is olivine the most dominant mineral in most beach sands?
A nonfoliated metamorphic rock would likely form…
What type of geologic structure is conducive to trapping oil if a cap rock exists?
Which metamorphic rock has been subjected to contact metamorphism (not foliated)?