In the parowan Gap in Iron county Utah 1) What is the nature of the contact alon
ID: 107309 • Letter: I
Question
In the parowan Gap in Iron county Utah1) What is the nature of the contact along the western edge of the Navajo Formation?
2) What is the nature of the Navajo Formation along the contact with the Carmel Formation?
3) What is the nature of the contact between the Navajo and the Carmel Formations? (Hint: A field sketch from a vantage point that provides a cross-section will help answer this question).
4) What is the nature of the geologic structure in which the Isom, Needles, and Claron Formations crop out? What is the regional tectonic significance of this structure?
5) What regional scale structure is implied by the small scale structures and attitude of the bedding in the Carmel Formation?
6) What is the contact relationship between the Carmel and the Iron Springs Formation? How do you know?
7) What is the attitude of the bedding in the Iron Springs Formation in the region between the Carmel Formation and Coal Creek? How do you know?
8) What is the geologic structure present in Coal Creek? What is its tectonic significance?
9) What evidence can you present to constrain the direction of tectonic transport during the Sevier Orogeny?
10) What is the nature of the contact between the Grand Castle Formation and the underlying units? What is its tectonic significance? What is the nature and provenance of the clasts in the Grand Castle Formation?
11) What is the origin of the present day physiographic feature (that the road occupies) known as “Parowan Gap” ? What type of tectonic activity does the feature imply? In the parowan Gap in Iron county Utah
1) What is the nature of the contact along the western edge of the Navajo Formation?
2) What is the nature of the Navajo Formation along the contact with the Carmel Formation?
3) What is the nature of the contact between the Navajo and the Carmel Formations? (Hint: A field sketch from a vantage point that provides a cross-section will help answer this question).
4) What is the nature of the geologic structure in which the Isom, Needles, and Claron Formations crop out? What is the regional tectonic significance of this structure?
5) What regional scale structure is implied by the small scale structures and attitude of the bedding in the Carmel Formation?
6) What is the contact relationship between the Carmel and the Iron Springs Formation? How do you know?
7) What is the attitude of the bedding in the Iron Springs Formation in the region between the Carmel Formation and Coal Creek? How do you know?
8) What is the geologic structure present in Coal Creek? What is its tectonic significance?
9) What evidence can you present to constrain the direction of tectonic transport during the Sevier Orogeny?
10) What is the nature of the contact between the Grand Castle Formation and the underlying units? What is its tectonic significance? What is the nature and provenance of the clasts in the Grand Castle Formation?
11) What is the origin of the present day physiographic feature (that the road occupies) known as “Parowan Gap” ? What type of tectonic activity does the feature imply?
1) What is the nature of the contact along the western edge of the Navajo Formation?
2) What is the nature of the Navajo Formation along the contact with the Carmel Formation?
3) What is the nature of the contact between the Navajo and the Carmel Formations? (Hint: A field sketch from a vantage point that provides a cross-section will help answer this question).
4) What is the nature of the geologic structure in which the Isom, Needles, and Claron Formations crop out? What is the regional tectonic significance of this structure?
5) What regional scale structure is implied by the small scale structures and attitude of the bedding in the Carmel Formation?
6) What is the contact relationship between the Carmel and the Iron Springs Formation? How do you know?
7) What is the attitude of the bedding in the Iron Springs Formation in the region between the Carmel Formation and Coal Creek? How do you know?
8) What is the geologic structure present in Coal Creek? What is its tectonic significance?
9) What evidence can you present to constrain the direction of tectonic transport during the Sevier Orogeny?
10) What is the nature of the contact between the Grand Castle Formation and the underlying units? What is its tectonic significance? What is the nature and provenance of the clasts in the Grand Castle Formation?
11) What is the origin of the present day physiographic feature (that the road occupies) known as “Parowan Gap” ? What type of tectonic activity does the feature imply? 1) What is the nature of the contact along the western edge of the Navajo Formation?
2) What is the nature of the Navajo Formation along the contact with the Carmel Formation?
3) What is the nature of the contact between the Navajo and the Carmel Formations? (Hint: A field sketch from a vantage point that provides a cross-section will help answer this question).
4) What is the nature of the geologic structure in which the Isom, Needles, and Claron Formations crop out? What is the regional tectonic significance of this structure?
5) What regional scale structure is implied by the small scale structures and attitude of the bedding in the Carmel Formation?
6) What is the contact relationship between the Carmel and the Iron Springs Formation? How do you know?
7) What is the attitude of the bedding in the Iron Springs Formation in the region between the Carmel Formation and Coal Creek? How do you know?
8) What is the geologic structure present in Coal Creek? What is its tectonic significance?
9) What evidence can you present to constrain the direction of tectonic transport during the Sevier Orogeny?
10) What is the nature of the contact between the Grand Castle Formation and the underlying units? What is its tectonic significance? What is the nature and provenance of the clasts in the Grand Castle Formation?
11) What is the origin of the present day physiographic feature (that the road occupies) known as “Parowan Gap” ? What type of tectonic activity does the feature imply?
Explanation / Answer
1)At the western edge of Navajo,the contact is the presence of Wingate sandstones and both belong to eolian type formation.
2)The nature of Navajo formation along with Carmel formation is that the carmel formation is overlapped at an unconformity by subhorizontal debris flow and over years deformation is being recognized in this region.
3)Th contact between Navajo and Carmel is certainly deformed due to the subhorizontal debris flow and due to unconformity in its formation.
4)The geological structure of needles,claron and isom is they are formed from the remains of volcanic rocks. These were earlier continuously erupting strong volcanic structures which are now formed as these rock structures.
5)The small bedding structures in the carmel formation are responsible for forming the contact with Navajo on the side of carmel formation and these are irregular in formation.
6)Iron springs are formed from volcanic rocks while carmel formation is overlapped due to debris and subhorizontal flow and is irregular in its formation. From this we can infer that both the structures are formed from the existing rock structures.
7)The attitude of bedding between carmel and coal creek is that the deposition of volcanic lava or the rock particles are present in between these rock structures during their formation.
8)Coal creek as the name indicates is known for its coal mining property and the presence of prominent trails parallels the creek and allows mining process to be more easier. The tectonic significance is that it could be the remains of some old rock structures containing minerals.
9)The presence of river Sevier is present to constrain the direction of tectonic transport during sevier orogeny. This was mainly formed by subduction of oceanic Farallon plate underneath the continental North american plate.
10)The Grand Castle formation is formed as a resilult of accumulation of sand particles and rock structures.The nature of clasts is the particles are strongly held together which cannot carried away by weathering process.
11)Many years ago the rock structure from the earth's crust paralleled to form a rock structure and due to the effect of rain and weathering a gap was shaped in the rock structure therby forming Parowan gap.
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