lowarched

Lowarched is a term that describes a geological feature characterized by a gentle, broad upward curve in rock strata. Unlike a more pronounced arch, a low arch has a very shallow dome shape with a wide span. This type of geological formation is often found in sedimentary rock sequences and can be the result of various tectonic forces, such as broad upwarping of the Earth's crust or the gentle uplift associated with salt domes or anticlines.

The formation of low arches is a gradual process that occurs over millions of years. Sedimentary layers are deposited horizontally, and subsequent geological events cause these layers to deform. In the case of a low arch, the deformation is subtle, leading to a wide, undulating surface. The scale of a low arch can vary significantly, from a few kilometers to hundreds of kilometers in diameter.

Low arches are of interest to geologists for several reasons. They can play a role in the entrapment of hydrocarbons, such as oil and natural gas, making them important targets for exploration. The structural traps formed by these gentle folds can prevent migrating petroleum from escaping. Additionally, the study of low arches can provide insights into the regional tectonic history and the stress regimes that have affected an area over geological time. Their subtle nature can sometimes make them more challenging to identify and map compared to more dramatic geological structures.