Is the Alboran Basin, Western Mediterranean, an Impact Crater? Part I: Kinematics


by Michael J. Oard

Understanding the geology and geophysics of the Alboran Sea Basin will contribute toward developing a comprehensive Flood model. In this analysis, I assume the described structural geology is accurate, including the thrust faults. The most unique aspect of the Alboran Sea Basin and the surrounding mountains is an extended, subsided basin surrounded by thrust faults that radially moved away from the basin. According to GPS measurements, this activity took place in an area where the African and Eurasian plates are slowly converging. The thrusts are divided into three zones with local mantle rock, ultrahigh pressure minerals, and diamonds exposed in places, indicating exhumation from depths below 140 km. Geophysical observations indicate the Alboran Basin has thinned crust, a high Moho, a high gravity anomaly, and high heat flow. Seismicity does not form any significant pattern, but unexplained earthquakes continue beneath Granada at 620 to 660 km depth. The geology indicates that after large-scale tectonics, the area was deeply eroded, depositing thick Late Cenozoic sediments in the valleys and basins. Much of the unique geology and geophysics of the area is unexplained by uniformitarian scientists.