Origin of anticlinefrom anticlinal, modeled on incline, decline
Geol. a sharply arched fold of stratified rock from whose central axis the strata slope downward in opposite directions
A fold with strata sloping downward on both sides from a common crest.
A fold of rock layers that slope downward on both sides of a common crest. Anticlines form when rocks are compressed by plate-tectonic forces. They can be as small as a hill or as large as a mountain range.
anti- + -cline
- Again, the most convenient site for oil wells is the crest of an anticline or "dome," where an impervious stratum imprisons the gas and oil in a subjacent saturated layer under pressure.
- Of England are the two Tertiary basins of London and Hampshire, separated by the dissected anticline of the Weald.
- Where they dip away from the axis of movement the structure is termed an anticline or anticlinal fold; where they dip towards the axis, it is a syncline or synclinal fold.
- The principal structural feature is the broad anticline, its axis running north and south, which has brought up the Carboniferous Limestone; this uplifted region is the southern extremity of the Pennine Range.
- On the south side of a well-marked anticline in the Upper Old Red Sandstone at North Sannox, the Carboniferous strata reappear on the coast with a south dip showing a similar ascending sequence for about half a mile.