1. Lake deposits formed by glaciation, including deep glacial scouring, are abundant.2. The genus is known primarily from the Early Eocene, Wasatchian stage, Fossil Lake deposits . 3. Important lake deposits , predominantly clay, were thus laid down in the Monongahela River basin. 4. It is known from what are interpreted as lake deposits . 5. The presence of " Altenglanerpeton " in a lake deposit suggests that it was aquatic. 6. Some tuffs found in Escara lake deposits have been dated to about 1.87 million years ago. 7. This program discovered the Walsh Lake deposit . 8. It also occurs in the middle Eocene lake deposits of Washington and British Columbia [ 1 ]. 9. This situation prevailed for several hundred years as evidenced by lake deposits beneath and around Llangorse Lake. 10. The Rabbit Lake deposit was discovered in 1968 and production started in 1975 using open-pit mining methods.
