Annotated record of the detailed examination of Mn deposits from DSDP Site 86, Leg 10 (Cores 86-8, 86-9)

The origin of the Campeche Escarpment in the Gulf of Mexico has been attributed to several causes. Some suggest that the scarp represents a fault scarp, others suggest that its origin is a function of upbuilding and outbuilding likened, in some cases, to that of delta building. Still others suggest that the scarp represents the detrital accumulation seaward of a barrier or reef complex. In order to clarify these possible interpretations, Site 86 was located on a bench at a depth of 780 fathoms in the vicinity of the Campeche Escarpment.

墨西哥湾坎佩切陡崖（Campeche Escarpment）的成因目前存在多种不同假说。部分学者认为该陡崖属于断层崖；另有观点提出其成因与垂向加积及侧向展积作用相关，在部分情形下可类比三角洲的形成过程；还有学者认为该陡崖是障壁或礁复合体向海一侧的碎屑堆积体。为厘清上述多种可能的成因解释，研究人员在坎佩切陡崖附近水深780英寻的海底阶地上布设了86号钻探站位。