Geological Mapping · mapping-4-6

Ridge interpreted as lava-controlled landform

The elongated ridge is consistent with a resistant volcanic or volcaniclastic substrate, but morphology cannot uniquely identify a lava-controlled landform.

Ridge interpreted as lava-controlled landform

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Geological interpretation and evidential boundary

The elongated ridge is consistent with a resistant volcanic or volcaniclastic substrate, but morphology cannot uniquely identify a lava-controlled landform. Confirmation requires continuous mapping of Kumbang-related lithology, clast or phenocryst petrography, contact relationships, weathering style and structural attitude along the ridge, together with rejection of an alternative in which a competent sedimentary bed forms the same positive relief. Relief inversion is also possible if formerly low volcanic fill became erosionally resistant. The image is therefore a strong targeting observation: it predicts specific rock types and boundary geometries that should recur along strike. Its interpretation should remain conditional until those predictions are satisfied at multiple independent stations.

Source
Private mapping source vault · geological evidence record
Location in source
PDF page 61
Image quality
Standard
Record ID
mapping-4-6