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monocline

monocline

1 9.9
A bend in rock layers that makes a single step in the ground with all parts tilted the same way
  • noun
  • /ˈmɒnəˌklaɪn/
  • Specialized
: monoclina
  • The monocline near the Grand Canyon exhibits a distinct step-like fold in the rock layers.

Examples

  • The East Kaibab Monocline elevates the Kaibab, Walhalla, and Coconino Plateaus and parts of the Grand Canyon.

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  • The Echo Cliffs Monocline forms a structural boundary between the Marble Plateau to the west and the Kaibito and Moenkopi Plateaus to the east.

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  • A small part of the northeast-dipping Red Lake Monocline is present in the northeast corner of the quadrangle.

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  • Principal folds are the north-south-trending, east-dipping Echo Cliffs Monocline and the East Kaibab Monocline.

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  • Principal folds are the north-south-trending, east-dipping Echo Cliffs Monocline and the East Kaibab Monocline.

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  • The Tuba City Syncline is a very broad downwarp that parallels the Echo Cliffs Monocline north of Tuba City.

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  • Grand Canyon erosion has exposed the Butte Fault beneath the east Kaibab Monocline, providing a window into the structural complexity of monoclines in this part of the Colorado Plateau.

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  • Grand Canyon erosion has exposed the Butte Fault beneath the east Kaibab Monocline, providing a window into the structural complexity of monoclines in this part of the Colorado Plateau.

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  • Geologists study the monocline formations to understand the geological history of the region.

  • During the hike, we observed a striking monocline that revealed the horizontal strata dipping to one side.

Surface Forms

monocline singular
monoclines plural

Morphology

monocline = cline + mono (semi-transparent) = mono + cline

The word is built from the prefix 'mono-' meaning 'single' and 'cline' meaning 'slope', but the geological sense is technical and not immediately obvious to an average learner.

Etymology

Monocline comes from mono- meaning 'one' and -cline meaning 'to lean', the same idea you see in incline. So a monocline is like a 'single slope' in rock layers where they all tilt the same way.