求翻译：四海龙湾玛珥湖位于靖宇县吊水湖乡西南8 km，龙湾林场北2 km公路东侧，北纬42°17′，东经126°36′，呈圆形，直径约为750 m，最大水深50 m，四周火山垣海拔791 m，森林茂盛，高出湖面约20-40 m，主要由火山碎屑岩和玄武质火山熔岩组成，顶部有一层玄武质熔岩与下伏的火山碎屑岩之间存在烘烤层。是什么意思？

Maar Lake, SIHAILONGWAN located in the southwest of Jingyu County hanging water Tahu 8 km, the Longwan forest 2 km north of highway east and latitude 42 ° 17 'east longitude 126 ° 36', rounded to a diameter of about 750 m, maximum depth of 50 m, four weeks volcano Yuan an altitude of 791 m, lush for

Hailong Bay 4 attractive sights Jing Yu County is located in Lake township water lift 8 km south-west Kowloon Bay, 2 Km north stand road, east side north latitude and 42° 17' 36" east longitude and 126 degrees is circular, with a diameter is about 750 M, 50 m deep at the most 4 weeks, 791 m altitude

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Sihai longwan Mary Joel Lake is located in Jingyu hanging water Lake Township Southwest 8 km, longwan forest farm North 2 km highway East, latitude 42 ° 17 ', longitude 126 ° 36 ', is round, diameter about for 750 m, maximum depth 50 m, around volcano ruins altitude 791 m, forest lush, high out Lake

Four Pipefish bay Masurium Erhu is located Jingyu County to draw water from a well southwest the lake township 8 km, north the dragon bay tree farm east side 2 km roads, the north latitude 42°17 ', the east longitude 126°36 ', assumes the circular, the diameter is approximately 750 m, maximum water