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| | Geology and ecology |
 | | The collapse forms a 2-2½-m-deep, flat-bottomed depression with sharp edges and with scattered large pieces of the broken limestone surface. |
 | | In places the edge of the collapse zone provides access to underground caves and to sascaberas — small mines that were a Maya source of rotted limestone (sascab) used for making stucco and mortar. |
 | | The caves, with their possible religious significance, the sheltered, easily-defended sea access, and the variety of subsistence opportunities (slash-and-burn corn-farming, game animals, birds, fresh- and salt-water fish and molluscs) at Muyil may have made the site appealing to its early settlers. |
| muyil.smv.org /geology_and_ecology.htm (1490 words) |
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