問題詳情
2. Based on global observations, the ocean floor at age of 60 Ma is 5 km decp. For older ocean floor of 120 Ma, thedepth of the floor is expected to be__________ ? According to the instantaneous half-space cooling model and isostaticcompensation, the "predicted" depth for such 120-Ma-old ocean floor is more likely be__________ ? Choose theclosest answer from below:
(A) 5 km unchanged；
(B) slightly deeper as 5.5 km；
(C) approaching to 7 km；
(D)doubled to 10 km. (5 pts each, 10 pts total)
參考答案
答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增