Petrography and Sedimentology of the Nauga Tuffs, Campbellrand Subgroup, Griqualand West, South Africa: Implications for Magma Composition, Volcanism, Depositional Mechanisms and Setting

Title:
Petrography and Sedimentology of the Nauga Tuffs, Campbellrand Subgroup, Griqualand West, South Africa: Implications for Magma Composition, Volcanism, Depositional Mechanisms and Setting
Authors:
Davies, Darian
Abstract:
The tuffs of South Africa's Nauga Formation are investigated for their petrographic and sedimentological properties. Pyroclasts form the bulk of the Nauga tuffs and include altered vitric clasts, accretionary lapilli and armored lapilli, as well as lithic fragments. Detrital crystals of quartz and K-feldspar are present as well. The Nauga pyroclasts formed via phreatomagmatic eruption processes from magma that was most likely basaltic to intermediate in composition. Eruption occurred at shallow subaqueous vents, while the Nauga tuffs were deposited in a deep water facies, possibly by direct airfall, decelerating subaerial pyroclastic flows, as well as high- and low- concentration turbidity currents. The Prieska facies is interpreted as a basinal paleoenvironment.
Citation:
Davies, Darian. “Petrography and Sedimentology of the Nauga Tuffs, Campbellrand Subgroup, Griqualand West, South Africa: Implications for Magma Composition, Volcanism, Depositional Mechanisms and Setting.” Honors thesis, Oberlin College, 1996.
Type:
Thesis
Degree Level:
Bachelor of Arts
Discipline:
Geology
Degree Year:
1996
Notes:
CLICK THE LINK BELOW TO REQUEST THIS THESIS
Additional Links:
http://www.oberlinlibstaff.com/testform.2.html
PERMANENT LINK:
http://hdl.handle.net/11282/581150

Full metadata record

DC FieldValue Language
dc.contributor.authorDavies, Darianen
dc.date.accessioned2015-10-26T13:37:21Zen
dc.date.available2015-10-26T13:37:21Zen
dc.date.issued1905-06-18en
dc.identifier.citationDavies, Darian. “Petrography and Sedimentology of the Nauga Tuffs, Campbellrand Subgroup, Griqualand West, South Africa: Implications for Magma Composition, Volcanism, Depositional Mechanisms and Setting.” Honors thesis, Oberlin College, 1996.en
dc.identifier.urihttp://hdl.handle.net/11282/581150en
dc.description.abstractThe tuffs of South Africa's Nauga Formation are investigated for their petrographic and sedimentological properties. Pyroclasts form the bulk of the Nauga tuffs and include altered vitric clasts, accretionary lapilli and armored lapilli, as well as lithic fragments. Detrital crystals of quartz and K-feldspar are present as well. The Nauga pyroclasts formed via phreatomagmatic eruption processes from magma that was most likely basaltic to intermediate in composition. Eruption occurred at shallow subaqueous vents, while the Nauga tuffs were deposited in a deep water facies, possibly by direct airfall, decelerating subaerial pyroclastic flows, as well as high- and low- concentration turbidity currents. The Prieska facies is interpreted as a basinal paleoenvironment.en
dc.relation.urlhttp://www.oberlinlibstaff.com/testform.2.htmlen
dc.titlePetrography and Sedimentology of the Nauga Tuffs, Campbellrand Subgroup, Griqualand West, South Africa: Implications for Magma Composition, Volcanism, Depositional Mechanisms and Settingen
dc.typeThesisen
thesis.degree.levelBachelor of Artsen
thesis.degree.disciplineGeologyen
thesis.degree.year1996en
dc.description.notesCLICK THE LINK BELOW TO REQUEST THIS THESISen
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