Synclines

Drilling for oil has in time involved ever smaller synclines and more sophisticated techniques to image them (tomagraphy) and directional drilling. ❋ Daniel (2008)

Anticlines and horsts are good sites for oil accumulation forming oil reservoirs whereas synclines and grabens are suitable for water accumulation forming aquifers or groundwater basins. ❋ Unknown (2007)

The greater pressure results in anticlines and synclines that are inclined and asymmetrical (Figure 6). ❋ Unknown (2007)

Both anticlines and synclines are the result of compressional stress. ❋ Unknown (2007)

Many drillers suppose that the gas seeks the anticlines and the oil the synclines, but others, equally long-headed, discard entirely all theory of this kind, and drill wherever it may be most convenient or where other operators have already demonstrated the existence of gas. ❋ Barkham Burroughs (N/A)

Almost all rock formations have some inclination to the horizon, and the constant change of this inclination produces a series of waves, the crests of which are known as anticlines, and the troughs as synclines. ❋ Barkham Burroughs (N/A)

In certain fields, oil and gas have been found in the tops of anticlines in water-saturated rocks, and farther down the flanks of folds or in synclines in unsaturated rocks. ❋ Unknown (1915)

Though this young assayin 'feller talks big about folds an' uplifts, synclines an 'anticlines. ❋ Unknown (1906)

Casey sabed a bit about synclines, I reckon, fo 'he kept faith in the camp, on'y he realized it' ud take a heap of money to develop, meanin 'to dig through the porphyry, I suppose. ❋ Unknown (1906)

Under long-continued erosion, anticlines may be degraded to valleys, while the synclines of the same system may be left in relief as ridges. ❋ William Harmon Norton (1900)

The Juras are an example of the stage of early youth, in which the anticlines still persist as ridges and the synclines coincide with the valleys; this they owe as much to the slight height of their uplift as to the recency of its date. ❋ William Harmon Norton (1900)

If further movements tending to accentuate such a structure were to occur (that is, if the anticlinals were to be made more anticlinal and the synclines more synclinal), there would therefore be two slips, one in each focus; while, along the fault-surface between, there would be practically no displacement. ❋ Charles Davison (1899)

The first fact that we infer from the former existence of such a temperature distribution is the improbability, indeed the impossibility, that anything resembling a rigid obstacle, or deep-seated "horst," can have existed beneath the present surface-level, and opposed the northerly movement of the deep-lying synclines. ❋ John Joly (1895)

They have been formed from the overthrown and drawn-out anticlines of great crust-folds, whose synclines or roots are traceable to the south side of the ❋ John Joly (1895)

In dealing with the subject of mountain genesis we will, elsewhere, see that all the great mountain ranges have originated in the accumulation of the detrital sediments near the shore in areas which, in consequence of the load, gradually became depressed and developed into synclines of many thousands of feet in depth. ❋ John Joly (1895)

In some places he finds that the valleys have become hills and the hills have become valleys, or that the anticlines and synclines, as he calls them, have changed places -- as a result of the unequal hardness of the rocks. ❋ John Burroughs (1879)

The mine is situated in a geologic area noteworthy for alternating ridges and draws (anticlines and synclines) where the coal, buried in layers of sandstone and shale, is sometimes within 100 feet of the surface and sometimes ❋ < (2010)

Anticlines are layers of rock that folded into an arch, and synclines are the opposite - the layers of rock have folded into a U shape, Stoddard said. ❋ Unknown (2010)