Definition
Wabar craters are a small cluster of impact craters located in the Rubʿ al‑Khāli (Empty Quarter) desert of Saudi Arabia, formed by the impact of a meteorite or meteoroid.
Overview
The craters lie near the border of the southern Arabian Peninsula, in a remote area of central Saudi Arabia. They were first reported by local Bedouin tribes and later documented by scientific expeditions in the early 20th century. The site consists of a primary crater accompanied by several smaller satellite pits. Owing to the harsh desert environment, the craters are relatively well preserved, although wind erosion continually reshapes the surrounding sand dunes.
Etymology / Origin
The name “Wabar” is derived from the Arabic designation used by Bedouin herders for the locality where the depressions are found. The precise linguistic origins of the term are not extensively documented, but it functions as a toponym referring to this specific desert region.
Characteristics
| Feature | Description |
|---|---|
| Number of craters | One principal crater and several subsidiary pits (the exact count varies with sand coverage). |
| Dimensions | The main crater is estimated to be roughly 30–45 metres in diameter and about 5–7 metres deep; satellite craters range from a few metres to ~20 metres across. |
| Formation | Produced by the high‑velocity impact of a meteoroid; the kinetic energy generated a shock wave that excavated the depressions. |
| Age | The impact is thought to be several thousand years old, but precise dating has not been conclusively established. (Accurate information is not confirmed.) |
| Geology | The target material consists primarily of granitic and quartzitic substrata overlain by loose sand; impact melt and breccia have been reported in limited field samples. |
| Accessibility | The site is remote and lacks permanent infrastructure; access is usually achieved via off‑road vehicles from the nearest settlements. |
Related Topics
- Impact cratering processes
- Meteorite impacts in the Arabian Peninsula
- Rubʿ al‑Khāli desert (Empty Quarter)
- Desert geomorphology
- Planetary geology
Note: While the existence of the Wabar craters is well recognized in geological literature, certain specifics—particularly the exact age and detailed subsurface composition—remain subjects of ongoing research.