The result for the Cahill hole was expected, given that the only significant sulphide intersected was stratiform
syngenetic pyrite and not hydrothermal in nature
Stephani, "Cryostratigraphy of late Pleistocene
syngenetic permafrost (yedoma) in northern Alaska, Itkillik river exposure," Quaternary Research, vol.
From the available data, it is not obvious whether the massive magnetite formed from an iron-rich melt or through metasomatism but the presence of magnetite pebbles in the Jurassic Deh Vazir conglomerate indicates that a part of ore mineralization occurred
syngenetic or premetamorphic.
Mineral species, occurrence mode (
syngenetic or epigenetic) and mineral matter liberations during the milling process may produce significant differences in the ash content of the coals, Fuerstenau et al., (1983).
8), a feature that is at odds with a model that invokes
syngenetic ore formation.
Targets: Polymetallic VHMS mineralisation;
syngenetic exhalative gold mineralisation; and epigenetic structurally-controlled gold mineralisation.
Only the
syngenetic Volodarsk-Volynski pegmatites, in the contact zone, contain rich chamber-type pegmatites containing giant pockets with quartz, smoky quartz and significant collector-quality crystals.
Likewise, the presence of Ge in coal is important as a key to understanding
syngenetic and diagenetic influences on the coal geochemistry and as a potential ore resource.
The oil accumulations in the PS may be partly
syngenetic, with the bulk of the oil generated in the Diatomaceous series and then migrated upwards.
Most likely, the finer glauconite fraction, which was subjected to XRD analyses, reflects
syngenetic conditions while the coarser one represents rather a redeposition history.
To be accepted as bona fide, ancient microfossils must be structurally preserved biogenic remnants that are indigenous to and
syngenetic with the primary deposition of sedimentary rocks of known stratigraphic and geographic source and established age (5, 14).