Asthenospheric and lithospheric sources for Mesozoic dolerites from Liberia (Africa): trace element and isotopic evidence
- Dupuy, C, Marsh, Julian S, Dostal, J, Michard, A, Testa, S
- Authors: Dupuy, C , Marsh, Julian S , Dostal, J , Michard, A , Testa, S
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140422 , vital:37887 , https://doi.org/10.1016/0012-821X(88)90067-2
- Description: Combined elemental, and Sr and Nd isotopic data are presented for Mesozoic dolerite dikes of Liberia (Africa) which are related to the initial stage of opening of the Atlantic Ocean.
- Full Text: false
- Date Issued: 2002
- Authors: Dupuy, C , Marsh, Julian S , Dostal, J , Michard, A , Testa, S
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140422 , vital:37887 , https://doi.org/10.1016/0012-821X(88)90067-2
- Description: Combined elemental, and Sr and Nd isotopic data are presented for Mesozoic dolerite dikes of Liberia (Africa) which are related to the initial stage of opening of the Atlantic Ocean.
- Full Text: false
- Date Issued: 2002
Geochemical constraints on coupled assimilation and fractional crystallization involving upper crustal compositions and continental tholeiitic magma
- Authors: Marsh, Julian S
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140432 , vital:37888 , https://doi.org/10.1016/0012-821X(89)90021-6
- Description: The commonly analyzed trace elements in tholeiites can be subdivided into three groups depending on their sense of enrichment or depletion in upper continental crust in relation to fractional crystallization. Lithophile incompatible elements are enriched in crustal rocks and by fractional crystallization, whereas compatible transition elements such as Ni and Cr are depleted. A small third group comprising Ti, V, Fe, and sometimes P, enrich with crystallization but are depleted in the crust.
- Full Text: false
- Date Issued: 2002
- Authors: Marsh, Julian S
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/140432 , vital:37888 , https://doi.org/10.1016/0012-821X(89)90021-6
- Description: The commonly analyzed trace elements in tholeiites can be subdivided into three groups depending on their sense of enrichment or depletion in upper continental crust in relation to fractional crystallization. Lithophile incompatible elements are enriched in crustal rocks and by fractional crystallization, whereas compatible transition elements such as Ni and Cr are depleted. A small third group comprising Ti, V, Fe, and sometimes P, enrich with crystallization but are depleted in the crust.
- Full Text: false
- Date Issued: 2002
The distribution of platinum group elements in the Insizwa lobe, Mount Ayliff Complex, South Africa: implications for Ni-Cu-PGE sulfide exploration in the Karoo igneous province
- Maier, W D, Marsh, Julian S, Barnes, Sarah-Jane, Dodd, D C
- Authors: Maier, W D , Marsh, Julian S , Barnes, Sarah-Jane , Dodd, D C
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150353 , vital:38969 , https://0-doi.org.wam.seals.ac.za/10.2113/gsecongeo.97.6.1293
- Description: The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some 800 km2 surface area and up to 1,200 m thickness. On the basis of compositional similarities and spatial association, it is generally interpreted to form part of the Karoo igneous province. Similarities between the Mount Ayliff Complex and the staging chambers and feeder conduits to flood basalts that host magmatic sulfide ores elsewhere in the world suggest that the Mount Ayliff Complex may have an enhanced potential for Noril’sk-Talnakh–type massive Ni-Cu sulfide ores, an idea that is supported by the well-known sulfide occurrence at Waterfall Gorge.
- Full Text: false
- Date Issued: 2002
- Authors: Maier, W D , Marsh, Julian S , Barnes, Sarah-Jane , Dodd, D C
- Date: 2002
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/150353 , vital:38969 , https://0-doi.org.wam.seals.ac.za/10.2113/gsecongeo.97.6.1293
- Description: The Mount Ayliff Complex of the Eastern Cape province of South Africa is a layered intrusion of some 800 km2 surface area and up to 1,200 m thickness. On the basis of compositional similarities and spatial association, it is generally interpreted to form part of the Karoo igneous province. Similarities between the Mount Ayliff Complex and the staging chambers and feeder conduits to flood basalts that host magmatic sulfide ores elsewhere in the world suggest that the Mount Ayliff Complex may have an enhanced potential for Noril’sk-Talnakh–type massive Ni-Cu sulfide ores, an idea that is supported by the well-known sulfide occurrence at Waterfall Gorge.
- Full Text: false
- Date Issued: 2002
Clifftop path on Sacramento trail, Schoenmakerskop
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12925 , http://hdl.handle.net/10962/d1014898
- Description: Last house in top left-hand corner. Deryk Landman & Jennie Bennie in picture.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12925 , http://hdl.handle.net/10962/d1014898
- Description: Last house in top left-hand corner. Deryk Landman & Jennie Bennie in picture.
- Full Text: false
- Date Issued: 2002-04-10
Clifftop path on Sacramento trail, Schoenmakerskop
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12926 , http://hdl.handle.net/10962/d1014901
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12926 , http://hdl.handle.net/10962/d1014901
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
Sacramento Reserve, Schoenmakerskop, Port Elizabeth
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12929 , http://hdl.handle.net/10962/d1014905
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12929 , http://hdl.handle.net/10962/d1014905
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
Sacramento Reserve, Schoenmakerskop, Port Elizabeth
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12928 , http://hdl.handle.net/10962/d1014904
- Description: Note type of vegetation. Deryk Landman, Jennie Bennie & Rose Trehaeven.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12928 , http://hdl.handle.net/10962/d1014904
- Description: Note type of vegetation. Deryk Landman, Jennie Bennie & Rose Trehaeven.
- Full Text: false
- Date Issued: 2002-04-10
Sacramento Reserve, Schoenmakerskop, Port Elizabeth
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12927 , http://hdl.handle.net/10962/d1014903
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12927 , http://hdl.handle.net/10962/d1014903
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
Sacramento Reserve, Schoenmakerskop, Port Elizabeth
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12930 , http://hdl.handle.net/10962/d1014907
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-10
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12930 , http://hdl.handle.net/10962/d1014907
- Description: Note type of vegetation.
- Full Text: false
- Date Issued: 2002-04-10
Entrance to cave in low dune in wide open valley in Sacramento Reserve, Schoenmakerskop, Port Elizabeth
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-19
- Subjects: Cynanchum obovatum -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape , Caves -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12933 , http://hdl.handle.net/10962/d1014914
- Description: Note heavy drapings of Cynanchum obovatum creeper.
- Full Text: false
- Date Issued: 2002-04-19
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-04-19
- Subjects: Cynanchum obovatum -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape , Caves -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12933 , http://hdl.handle.net/10962/d1014914
- Description: Note heavy drapings of Cynanchum obovatum creeper.
- Full Text: false
- Date Issued: 2002-04-19
Gembos
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12507 , http://hdl.handle.net/10962/d1013914
- Description: Spreen nearby trees.
- Full Text: false
- Date Issued: 2002-05-01
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12507 , http://hdl.handle.net/10962/d1013914
- Description: Spreen nearby trees.
- Full Text: false
- Date Issued: 2002-05-01
Gembos
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12508 , http://hdl.handle.net/10962/d1013915
- Description: Spreen nearby trees.
- Full Text: false
- Date Issued: 2002-05-01
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12508 , http://hdl.handle.net/10962/d1013915
- Description: Spreen nearby trees.
- Full Text: false
- Date Issued: 2002-05-01
Gembos Hotel
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12509 , http://hdl.handle.net/10962/d1013916
- Description: Gembos Hotel.
- Full Text: false
- Date Issued: 2002-05-01
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-05-01
- Type: still image
- Identifier: vital:12509 , http://hdl.handle.net/10962/d1013916
- Description: Gembos Hotel.
- Full Text: false
- Date Issued: 2002-05-01
Only remainder of much larger Parson's Vlei at Bridgemead, Port Elizabeth, after exceptional winter rains
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Parson's Vlei -- South Africa -- Eastern Cape , Birds -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12375 , http://hdl.handle.net/10962/d1013782
- Description: Original vlei drained by P.E. Municipality. Already 2 dabchicks, 2 Egyptian Geese & 2 yellowbiled duck were at the vlei which had been dry for years.
- Full Text: false
- Date Issued: 2002-09-14
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Parson's Vlei -- South Africa -- Eastern Cape , Birds -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12375 , http://hdl.handle.net/10962/d1013782
- Description: Original vlei drained by P.E. Municipality. Already 2 dabchicks, 2 Egyptian Geese & 2 yellowbiled duck were at the vlei which had been dry for years.
- Full Text: false
- Date Issued: 2002-09-14
Only remainder of much larger Parson's Vlei at Bridgemead, Port Elizabeth, after exceptional winter rains
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Parson's Vlei -- South Africa -- Eastern Cape , Birds -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12377 , http://hdl.handle.net/10962/d1013784
- Description: Original vlei drained by P.E. Municipality. Already 2 dabchicks, 2 Egyptian Geese & 2 yellowbiled duck were at the vlei which had been dry for years.
- Full Text: false
- Date Issued: 2002-09-14
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Parson's Vlei -- South Africa -- Eastern Cape , Birds -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12377 , http://hdl.handle.net/10962/d1013784
- Description: Original vlei drained by P.E. Municipality. Already 2 dabchicks, 2 Egyptian Geese & 2 yellowbiled duck were at the vlei which had been dry for years.
- Full Text: false
- Date Issued: 2002-09-14
Photo taken from bridge over narrowgauge railway between Bridgemead & Rowallan Park (in distance)
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12376 , http://hdl.handle.net/10962/d1013783
- Description: Shown here with tall wattles removed since my photographs 10 months earlier in neg. BP 6.
- Full Text: false
- Date Issued: 2002-09-14
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-09-14
- Subjects: Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12376 , http://hdl.handle.net/10962/d1013783
- Description: Shown here with tall wattles removed since my photographs 10 months earlier in neg. BP 6.
- Full Text: false
- Date Issued: 2002-09-14
Church hall (right) and minister's house (left) at Enon Mission, Witte River, Uitenhage
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12498 , http://hdl.handle.net/10962/d1013905
- Description: Suurberge in background.
- Full Text: false
- Date Issued: 2002-10-11
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape , Plants -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12498 , http://hdl.handle.net/10962/d1013905
- Description: Suurberge in background.
- Full Text: false
- Date Issued: 2002-10-11
Enon Church, inside and out, Witte River, Uitenhage
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12497 , http://hdl.handle.net/10962/d1013904
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12497 , http://hdl.handle.net/10962/d1013904
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11
Enon Church, inside and out, Witte River, Uitenhage
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12494 , http://hdl.handle.net/10962/d1013901
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12494 , http://hdl.handle.net/10962/d1013901
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11
Enon Church, inside and out, Witte River, Uitenhage
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12496 , http://hdl.handle.net/10962/d1013903
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11
- Authors: Skead, C J (Cuthbert John)
- Date: 2002-10-11
- Subjects: Enon Mission -- South Africa -- Eastern Cape
- Type: still image
- Identifier: vital:12496 , http://hdl.handle.net/10962/d1013903
- Description: Where the Rev. C.I. La Trobe of the English Moravian Mission for the Khoekoe in 1816.
- Full Text: false
- Date Issued: 2002-10-11