NEOTECTONIC KINEMATICS (GPS) VS. GEOLOGIC KINEMATICS OF THE CENTRAL RANGE FAULT SYSTEM, SOUTH AMERICAN-CARIBBEAN PLATE BOUNDARY, TRINIDAD
Geologic data characterizes the kinematics of the tectonic-scale deformation occurring over long-term time scales. A fold analysis using shortening values, limb dips, and hinge orientation based on cross sections along the Central Range constrain the angle of oblique convergence over a longer time frame. Paleomagnetic data from the Tamana Formation documents the rotational component of deformation along this fault zone since the Miocene time. The angle of convergence from the fold analysis, combined with paleomagnetic data, make it possible to estimate the total amount of displacement across the Central Range. Determination of the total displacement along the Central Range fault may give some indication as to whether modern plate motion rates determined by GPS could have accommodated the total movement since the Miocene time, or whether rates of plate motion have varied along the South American-Caribbean plate boundary through time.