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Post by account_disabled on Aug 30, 2023 2:42:17 GMT -8
Of tsunami deposits represents definite evidence for the existence of the early Mars ocean. RG: How big were the tsunamis? Rodriguez: We have estimated that on average they were about 50 meters high, but at some locations they could have reached as much as 120 m. Basically, high-rise heights. The surface areas they covered within the study region are also Switzerland Mobile Number List enormous; the older tsunami with ~800,000 Km^2, and he younger with 1000,000 Km^2. So, each had roughly the combined areas of California, Nevada and Oregon. RG: When did they happen? What caused them? Rodriguez: They happened approximately 3,400 million years ago, and they were likely separated by 3 to 15 million years. We find that meteor impacts capable of generating craters 30 km in diameter are a likely cause, based on how frequently they occur over the northern ocean. However, there are other processes capable of triggering tsunamis such as quakes or landslides, and we do no not rule those out. Image_1 Left: Color-coded digital elevation model of the study area showing the two proposed shoreline levels of an early Mars ocean that existed approximately 3.4 billion years ago. Right: Areas covered by the documented tsunami events extending from these shorelines. Credit: Alexis Rodriguez.
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