PHYSICAL APPEARANCE OF THE NORTH AND SOUTH AMERICA BY TECTONICS: FAR FROM RHETORIC, CLOSER TO REALITY

The first part of analysis about the current appearance of our Planet have provided several opinions to students and geologists whom had attended GSA meetings during the last two years. The topic is interesting to some of them and not relevant to others. For this reason it is necessary to continue this geological evaluation.

The probable original direction of the Triassic-Jurassic lava flows intercalated with conglomerate, sandstone, and red siltstone strata of could be North-South as the approach revealed in last researches. Also, the faults orientation such as Ramapo Fault, Great Fault, and more could be similar North to South at the beginning. However, the real strike of both is to Northeastern as well.

The next suggestion is that the San Andres Fault is a Transformation Fault initially located as all them parallel to the Equator imaginary line. However, it is logic that now the San Andres Fault’s strike is from SE to NW if the continent collapsed to the South western, during late Mesozoic-early Cenozoic named Laramide orogeny.

After Triassic-Jurassic, a catastrophic time with several faults, folds, as late Mesozoic-early Cenozoic (Laramide orogeny), because the centrifuge force permitted to ancient rocks appear as batholith from the West to the East following direction of the Earth’s Planet rotation through different Faults in both West and Est margins of the North Easter.

Actually, the Eastern border of the Rocky Mountains and the Western Andes Mountains in South America can represent two tremendous geological events producing subduction and uplift, where Pre-Paleozoic rocks connected with Triassic Jurassic volcano-sedimentary rocks. These evidences are present next to both Redlands Fault (North America) and Romeral Fault (South America.) Both events occurred slowly and it is clear that by today these faulting are still occurring and they will be forever caused by the continuous spinning of the Earth Planet and centrifuge force generated

Finally, the Andes Ridge was split by changing its direction NS to NE at the north part, NW in the middle part, and remaining NS at the south part of the Earth