Victoria Island Impact Structure
USA /
California /
Discovery Bay /
World
/ USA
/ California
/ Discovery Bay
World / United States / California
region, astrobleme, invisible
The 5.5km-wide bowl is buried under shale sediments west of Stockton, in San Joaquin County, and is thought to be between 37 and 49 million years.
Researchers are continuing to analyse cuttings from oil exploration wells drilled in the structure.
Details of the discovery were presented at the Lunar and Planetary Science Conference in Houston.
Data from a 3D seismic survey of an ancient sea bed clearly shows a circular structure buried 1,490-1,600m (4,890-5,250ft) below sea level.
The Victoria Island structure, as it has been named, has a concentric rim surrounding a "central uplift" - a peak at the centre - which are both characteristic of impact craters.
Co-investigator Professor Jared Morrow, from San Diego State University, said the context of the crater in relation to surrounding rock layers suggested it dated from the middle Eocene Epoch.
Addidional Information
en.wikinews.org/wiki/Oil_exploration_in_California%2C_U...
news.bbc.co.uk/2/hi/science/nature/6458841.stm
===========================
This is an approximate location of the area as described
Researchers are continuing to analyse cuttings from oil exploration wells drilled in the structure.
Details of the discovery were presented at the Lunar and Planetary Science Conference in Houston.
Data from a 3D seismic survey of an ancient sea bed clearly shows a circular structure buried 1,490-1,600m (4,890-5,250ft) below sea level.
The Victoria Island structure, as it has been named, has a concentric rim surrounding a "central uplift" - a peak at the centre - which are both characteristic of impact craters.
Co-investigator Professor Jared Morrow, from San Diego State University, said the context of the crater in relation to surrounding rock layers suggested it dated from the middle Eocene Epoch.
Addidional Information
en.wikinews.org/wiki/Oil_exploration_in_California%2C_U...
news.bbc.co.uk/2/hi/science/nature/6458841.stm
===========================
This is an approximate location of the area as described
Wikipedia article: http://en.wikipedia.org/wiki/Victoria_Island_structure
Nearby cities:
Coordinates: 37°53'19"N 121°32'1"W
- Pleasanton Ridge Regional Park 46 km
- Carmichael 88 km
- Sutter Bypass 167 km
- Southeast Fresno 203 km
- Anderson Valley 228 km
- Silverado Canyon 578 km
- Palms Valley 746 km
- Beirut Jadash 762 km
- Ejido Heroes de Chapultepec 906 km
- Canal de Ballenas 1202 km
- Victoria Island 0.4 km
- Byron Tract 5.2 km
- Upper Jones Tract 5.4 km
- Union Island 7.6 km
- Roberts Island 12 km
- Southern Delta 12 km
- Rindge Tract 17 km
- Central Delta 17 km
- Eastern Delta 27 km
- Western Delta 28 km
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