싱크홀
Boesmansgat
The single entrance to the Boesmansgat sinkhole on a private game farm in the Northern Cape: a narrow crack leading to a vast, very deep flooded chamber used for record-depth expeditions.
The dive entrance to Boesmansgat is a small crack, roughly 1.5 m by 3 m, at the bottom of a steep scramble on Mount Carmel game farm. Below it the flooded chamber widens rapidly into a very large void that continues to a silty floor at roughly 282-286 m.
Diving here is expedition work. A 2002 team needed about five hours just to move its equipment to the water's edge, and reported the nearest recompression chamber as about seven hours away. The documented dives are deep, long and supported by large teams, and the site is on private land with no public access procedure.
환경
Clear, still fresh water of about 19 C (1996 and 2002 reports) in a huge dark chamber; brown mud on the walls absorbs light, and the bottom is fine silt that clouds easily. At about 1,500 m altitude, decompression has to be adjusted for the lower air pressure.
컨디션
Temperature figures are from 1996 and 2002. The water level has changed over time.
현재 상태가 아닌 공개된 자료의 일반적인 범위입니다.
시설
No dive facilities are documented; a 2002 team described a steep scramble to the water, a five-hour equipment carry and a recompression chamber about seven hours away.
방향 파악용이며 내비게이션용이 아닙니다. 빈 점은 대략적인 위치입니다.
이 페이지의 모든 정보와 출처 (8)
| 정보 항목 | 상태 | 출처 |
|---|---|---|
| Boesmansgat is on Mount Carmel, a game farm near the Kuruman-Danielskuil road, about a 30-minute drive from the farmhouse. | 보고됨 | [1] [2] |
| Area-level coordinates only; the entrance is on private land.Rounded to 0.1 degree on purpose. | 보고됨 | [3] [1] |
| The deepest point reached is 282.6 m (Gomes, 1996).283.3 m (Mail & Guardian 1996) and 286 m (GUE 2002) are also published. | 출처 간 내용 불일치 | [4] [5] |
| A 2002 GUE team worked at depths between 30 m and 90 m in the upper chamber. | 최신 정보가 아닐 수 있습니다 | [1] |
| About 19 C in 1996 and 2002. | 최신 정보가 아닐 수 있습니다 | [4] [1] |
| Divers drop through a crack about 1.5 m by 3 m; the chamber opens quickly below, with brown mud on the walls and silt on the floor. | 보고됨 | [1] [5] |
| The sinkhole is on a private game farm; no public procedure, fee or opening hours were found. | 보고됨 | [1] [2] |
| The descent to the water is a steep scramble and moving dive equipment to the water's edge took about five hours in 2002; the nearest recompression chamber was then about seven hours away. | 최신 정보가 아닐 수 있습니다 | [1] |
확인됨: 직접 열람한 공식 또는 1차 출처에서 명시된 정보입니다. 보고됨: 2차 출처에서만 확인된 정보입니다. 출처 간 상충: 비고에 두 가지 내용이 모두 기재되어 있습니다. 최신 정보가 아닐 수 있음: 확인된 가장 최근 출처가 오래된 경우입니다.
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