Landslide and Sinkholes (Q4) Flashcards
Identification
- the downward movement of soil, rocks, and earth materials along a slope.
- can be triggered by certain geologic conditions and hazards such as typhoons, earthquakes, and volcanic eruptions.
LANDSLIDE
it is a slow or gradual movement of soil.
CREEP
downslope flow of soft and unconsolidated materials.
SLUMP
slow to rapid downslope movement of unconsolidated and rock debris.
ROCK AND DEBRIS SLIDE
free-falling movement of massive rocks from a cliff or
steep slopes.
ROCKFALL
the rapid flow of debris and other rock materials.
DEBRIS FLOW
characterized by a flowing mass of mud along the flank.
MUDFLOW
- These are geologic formations caused by exposure to water, erosion, and ground movement.
- can also be a result of drilling, mining, construction, changing of the land surface, broken water or drain
pipes
SINKHOLES
WHAT ARE THE 6 TYPES OF LANDSLIDES
CSRRDM
- CREEP
- SLUMP
- ROCK AND DEBRIS SLIDE
- ROCKFALL
- DEBRIS FLOW
- MUDFLOW
occur at the ground surface where bedrock is exposed or is very shallow, and result from rainfall and surface water percolating through the bedrock’s joints and fractures.
fault line
Dissolution sinkholes
These sinkholes start with something permeable covering the sinkhole while also containing a good deal of sand
Cover-subsidence sinkholes
They occur where the covering sediments contain a significant amount of clay.
Cover-collapse sinkholes
3 TYPES OF SINKHOLES
- Dissolution sinkholes
- Cover-subsidence sinkholes
- Cover-collapse sinkholes