of rocks, deposits, etc.; found where they and their constituents were formed
originating where it is found;
"the autochthonal fauna of Australia includes the kangaroo" "autochthonous rocks and people and folktales" "endemic folkways" "the Ainu are indigenous to the northernmost islands of Japan"
例句
Upper Reaches: The Autochthonous Depths. 冥河上游:即本生之渊。
Only then autochthon over 10 individuals, small. 当时土人只有10多个人,规模很小。
Erebus: A classical term for the Autochthonous Depths. 阴阳交界:称呼本生之渊的一个古老词汇。
The autochthonous mainly includes the argillaceous deposit. 深水原地沉积主要包括深水泥页岩沉积。
Autochthonous Depths: The highest and most shallow region of the Underworld. 本生之渊:冥界最高且最浅的区域。
Whether autochthonous or allochthonous, may be important in the total metabolic system of lakes and streams. 无论是自源的或他源的,在湖泊与河流的总代谢系统中都可能是重要的。