escarp

1. Alluvial fan and fan delta developed in escarp region of the north of the sag, and river-delta farmed in ramp belt of the south. These sediment bodies are characterized by sandstone pinch out, which is the base of lithological hydrocarbon reservoir. 2.
   中生界在洼陷北部陡坡带发育冲积扇、扇三角洲沉积体系，在南部缓坡带发育河流三角洲沉积体系，这些沉积体系在斜坡部位易形成砂体尖灭，是形成岩性油气藏的基础。

noun

1. a steep artificial slope in front of a fortification

   Synonym:    escarpmentscarpprotective embankment