Faults in Southern Vietnam - implications for extrusion of Indochina v2

Description

These data include structural measurements of faults in southern Vietnam, including slickenside measurements where possible. Fault data are given as strike and dip, reported in the right hand rule convention, collected over three field campaigns using a Brunton compass. An additional file is lineament data generated from ArcMap, given as strike of lineaments and separated into blocks, to enable Figure 5 in the associated paper to be reproduced. For consistency, this file includes the lineament data for the published studies included in Figure 5. We include the dataset for T/P axes generated from FaultKin to allow Figure 7 to be reproduced. Lastly, we archive the geochemical dataset from the Ar-Ar dating of a key sample from the OSU Argon Geochronology Laboratory. We find that fault and lineament orientations in different lithospheric-scale, fault-bounded blocks (microblocks) are distinct from one another, implying that the different microblocks are moving discretely with respect to one another (continuum rubble tectonics). We suggest that this disintegration of southern Vietnam into smaller blocks is a natural result of continued extrusion where a free surface is no longer present.

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