The section extends northward from the ocean across the Palos Verdes Hills, through the Torrance, Dominguez, and Montebello oil fields, includes the type section of the Repetto formation, and continues north across the San Gabriel Valley to the San Gabriel Mountains north of Monrovia. Salient features are location and nature of lithologic and thickness changes in lower Pliocene and upper Miocene strata. A cross section of the Los Angeles sedimentary basin, and Los Angeles and San Gabriel structural basins is presented. The cross section portrays the need for clarification of stratigraphic terminology and need for differentiation between time-stratigraphic and rock-stratigraphic terms.

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