• The ( surface ) exposure of strata of Palaeozoic age ...
• Outcrops ( or Outcroppings ) of bituminous sand ...
• The ( surface ) exposure of strata of Palaeozoic age ...
• Outcrops ( or Outcroppings ) of bituminous sand ...
Циммерман М., Веденеева К.. Русско-Английский научно-технический словарь переводчика. Russian-English scientific dictionary for translators. 2012