Back to Erosion Landform
Tightly folded anticlines
Synclines
- A hogback is a homoclinal ridge.
- Formed from a monocline.
- Composed of steeply tilted strata of rock.
- Protruding from the surrounding area.
- The name comes from the ridge resembling the high.
- The two strata compose a hogback.
- It has different types of sedimentary rock with differing weathering rates.
- The softer rock erodes more quickly.
- Hogbacks are found as ridges along the;
Tightly folded anticlines
Synclines
- Hogback has steep dip slope.
- That is greater than 30° - 40° with a near symmetric slope on each ridge face.
- Most Hogbacks snake along a surface in a relatively straight line.
- The Dakota Sandstone Hogback encircles the Black Hills.
- An elliptical dome spanning from northwestern South Dakota to northeastern Wyoming.
- The Black Hills are approximately 125 miles long and 65 miles wide.
- The Dakota Hogback ridge formed resistant layers of the Dakota Sandstone.
- Green Mountain known as the Little Sundance Dome.
- It is found east of Sundance, Wyoming.
- It is a circular dome about 1800m across & 1400m wide.
Hogback Mountain |
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