Aenigmatite stability in silica-undersaturated rocks
- Authors: Marsh, Julian Saville
- Date: 1975
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/132942 , vital:36911 , https://doi.org/10.1007/BF00373333
- Description: Aenigmatite is common in many trachytes, phonolites and agpaitic nepheline syenites. Petrographic evidence suggests that the aenigmatite in these rocks arises by the reaction of Ti-magnetite with a peralkaline silica-undersaturated liquid, and it is postulated that a no-oxide field, where aenigmatite is stable, exists in alkaline undersaturated magmas.
- Full Text: false
- Date Issued: 1975
- Authors: Marsh, Julian Saville
- Date: 1975
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/132942 , vital:36911 , https://doi.org/10.1007/BF00373333
- Description: Aenigmatite is common in many trachytes, phonolites and agpaitic nepheline syenites. Petrographic evidence suggests that the aenigmatite in these rocks arises by the reaction of Ti-magnetite with a peralkaline silica-undersaturated liquid, and it is postulated that a no-oxide field, where aenigmatite is stable, exists in alkaline undersaturated magmas.
- Full Text: false
- Date Issued: 1975
Distribution of Ca in highly fractionated peralkaline magmas
- Authors: Marsh, Julian S
- Date: 1976
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/132974 , vital:36914 , https://doi.org/10.1016/0012-821X(76)90106-0
- Description: Many peralkaline rhyolites and granites contain less than 0.15 wt.% CaO. In contrast, strongly fractionated peralkaline nepheline syenites and phonolites usually contain greater than 0.5 wt.% CaO. Consideration of known distributions of Ca between crystals and liquid in conjunction with crystal fractionation does not provide an adequate explanation of the contrasting levels of Ca depletion observed. Examination of the suites of late-crystallizing accessory phases in peralkaline rocks suggests that Ca is more soluble in undersaturated magmas than in over-saturated magmas. Activities for CaO in silicic and phonolitic rocks are calculated and the latter have higher CaO activities than the former and this may manifest itself in the different suites of accessory phases and levels of Ca depletion noted in natural rocks.
- Full Text: false
- Date Issued: 1976
- Authors: Marsh, Julian S
- Date: 1976
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/132974 , vital:36914 , https://doi.org/10.1016/0012-821X(76)90106-0
- Description: Many peralkaline rhyolites and granites contain less than 0.15 wt.% CaO. In contrast, strongly fractionated peralkaline nepheline syenites and phonolites usually contain greater than 0.5 wt.% CaO. Consideration of known distributions of Ca between crystals and liquid in conjunction with crystal fractionation does not provide an adequate explanation of the contrasting levels of Ca depletion observed. Examination of the suites of late-crystallizing accessory phases in peralkaline rocks suggests that Ca is more soluble in undersaturated magmas than in over-saturated magmas. Activities for CaO in silicic and phonolitic rocks are calculated and the latter have higher CaO activities than the former and this may manifest itself in the different suites of accessory phases and levels of Ca depletion noted in natural rocks.
- Full Text: false
- Date Issued: 1976
Significance of 87Sr/86Sr ratios in the Merensky cyclic unit of the Bushveld Complex
- Kruger, Floris J, Marsh, Julian S
- Authors: Kruger, Floris J , Marsh, Julian S
- Date: 1982
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133524 , vital:36986 , https://doi.org/10.1038/298053a0
- Description: In a number of mafic layered intrusions, layers with platinum group element (PGE) mineralization coincide with breaks in cumulus mineral composition and isotopic variation trends through the layered sequence1,2. For example, in the Bushveld Complex in South Africa, abrupt increases in initial 87Sr/86Sr ratios occur at the UG-2 and Merensky pegmatoid (or ‘reef’) horizons, both of which are exploited for PGEs. We report here the results of a detailed Sr-isotope study across the Merensky unit and its immediate foot- and hangingwall-rocks which, when considered together with new ideas on processes operating in magma chambers3–5, suggest that magma mixing and post-cumulus infiltration of liquids displaced from below were important during crystallization of the Merensky pegmatoid.
- Full Text: false
- Date Issued: 1982
- Authors: Kruger, Floris J , Marsh, Julian S
- Date: 1982
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133524 , vital:36986 , https://doi.org/10.1038/298053a0
- Description: In a number of mafic layered intrusions, layers with platinum group element (PGE) mineralization coincide with breaks in cumulus mineral composition and isotopic variation trends through the layered sequence1,2. For example, in the Bushveld Complex in South Africa, abrupt increases in initial 87Sr/86Sr ratios occur at the UG-2 and Merensky pegmatoid (or ‘reef’) horizons, both of which are exploited for PGEs. We report here the results of a detailed Sr-isotope study across the Merensky unit and its immediate foot- and hangingwall-rocks which, when considered together with new ideas on processes operating in magma chambers3–5, suggest that magma mixing and post-cumulus infiltration of liquids displaced from below were important during crystallization of the Merensky pegmatoid.
- Full Text: false
- Date Issued: 1982
Al/Cr ratios of coexisting pyroxenes and spinellids in some ultramafic rocks
- Eales, Hugh V, Marsh, Julian S
- Authors: Eales, Hugh V , Marsh, Julian S
- Date: 1983
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133534 , vital:36987 , https://doi.org/10.1016/0009-2541(83)90045-1
- Description: Al/Cr atomic ratios of coexisting spinellids and ortho- and clinopyroxenes show a pattern of sympathetic variation that persists through ultramafic rocks of layered mafic complexes of upper-crustal type, Alpine complexes, and the nodules found in kimberlites and alkaline basalts. Simple expressions are empirically derived to link (Al/Cr) orthopyroxene and (Al/Cr)spinel ratios in putatively equilibrated rocks. Equivalence of spinel compositions in shallow layered complexes and kimberlite nodules of deep-seated origin negates direct crystallochemical control of Al/Cr ratios of spinels by pressure.
- Full Text: false
- Date Issued: 1983
- Authors: Eales, Hugh V , Marsh, Julian S
- Date: 1983
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/133534 , vital:36987 , https://doi.org/10.1016/0009-2541(83)90045-1
- Description: Al/Cr atomic ratios of coexisting spinellids and ortho- and clinopyroxenes show a pattern of sympathetic variation that persists through ultramafic rocks of layered mafic complexes of upper-crustal type, Alpine complexes, and the nodules found in kimberlites and alkaline basalts. Simple expressions are empirically derived to link (Al/Cr) orthopyroxene and (Al/Cr)spinel ratios in putatively equilibrated rocks. Equivalence of spinel compositions in shallow layered complexes and kimberlite nodules of deep-seated origin negates direct crystallochemical control of Al/Cr ratios of spinels by pressure.
- Full Text: false
- Date Issued: 1983
Black Workers housing 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39570 , vital:24899 , PIC/M 5508 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39570 , vital:24899 , PIC/M 5508 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Workers housing 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39501 , vital:24891 , PIC/M 5505 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39501 , vital:24891 , PIC/M 5505 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Workers housing 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39522 , vital:24893 , PIC/M 5506 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39522 , vital:24893 , PIC/M 5506 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Workers housing 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39591 , vital:24900 , PIC/M 5504 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39591 , vital:24900 , PIC/M 5504 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Workers housing 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39552 , vital:24896 , PIC/M 5507 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39552 , vital:24896 , PIC/M 5507 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black workers' stay away
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39611 , vital:24902 , PIC/M 5509 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39611 , vital:24902 , PIC/M 5509 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Zenzele housing
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39621 , vital:24903 , PIC/M 5510 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39621 , vital:24903 , PIC/M 5510 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Zenzele housing
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39643 , vital:24906 , PIC/M 5511 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39643 , vital:24906 , PIC/M 5511 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Zenzele housing
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40235 , vital:24963 , PIC/M 5513 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40235 , vital:24963 , PIC/M 5513 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Black Zenzele housing
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39653 , vital:24907 , PIC/M 5512 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/39653 , vital:24907 , PIC/M 5512 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Dr and Mrs Henderson, Mr Samuel Zamani, I Miti and Ester Zamani
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40245 , vital:24964 , PIC/M 5514 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40245 , vital:24964 , PIC/M 5514 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Dr Hendrson, Mr Simon Nemani, son Mpumelelo and his wife Ivy Nemani
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40255 , vital:24965 , PIC/M 5515 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40255 , vital:24965 , PIC/M 5515 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Rev John Edwards - Letter from Rev N B Kok to Dr Hewson
- Kok, N B
- Authors: Kok, N B
- Date: 1984
- Subjects: Edwards, John (1804-1887) , Methodist Church -- Missions -- South Africa , South Africa -- Church history
- Type: Text
- Identifier: http://hdl.handle.net/10962/19394 , vital:22439 , MS 20 003 , This letter is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Letter from Rev. N B Kok, the Superintendent Minister, Methodist Church, Graaff-Reinet Circuit, to Dr. Hewson. The letter, dated 29 March 1884, accompanied a picture of Rev. John Edwards (available: http://hdl.handle.net/10962/19428) who was instrumental in establishing of Methodism in the area. Transcription: [Letter dated] 29 March 1984 Dear Dr. Hewson Herewith the print of our Methodist founding father in Graaff-Reinet. He made a very significant contribution to the establishment of Methodism in these parts, both spiritually and materially. The name is still being given to infants, only last year I baptised what must have been a great, great, great grandson of the venerable “John Edwards” by that name in John Edwards Hobson. Trusting that the print is up to standard required. The cost of the same is R10-. We had it done at a place call Reinet Studios here in Graaff-Reinet. Greetings [signed] Rev N.B. Kok.
- Full Text: false
- Date Issued: 1984
- Authors: Kok, N B
- Date: 1984
- Subjects: Edwards, John (1804-1887) , Methodist Church -- Missions -- South Africa , South Africa -- Church history
- Type: Text
- Identifier: http://hdl.handle.net/10962/19394 , vital:22439 , MS 20 003 , This letter is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Description: Letter from Rev. N B Kok, the Superintendent Minister, Methodist Church, Graaff-Reinet Circuit, to Dr. Hewson. The letter, dated 29 March 1884, accompanied a picture of Rev. John Edwards (available: http://hdl.handle.net/10962/19428) who was instrumental in establishing of Methodism in the area. Transcription: [Letter dated] 29 March 1984 Dear Dr. Hewson Herewith the print of our Methodist founding father in Graaff-Reinet. He made a very significant contribution to the establishment of Methodism in these parts, both spiritually and materially. The name is still being given to infants, only last year I baptised what must have been a great, great, great grandson of the venerable “John Edwards” by that name in John Edwards Hobson. Trusting that the print is up to standard required. The cost of the same is R10-. We had it done at a place call Reinet Studios here in Graaff-Reinet. Greetings [signed] Rev N.B. Kok.
- Full Text: false
- Date Issued: 1984
Rhodes University accomodation
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40266 , vital:24966 , PIC/M 5516 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40266 , vital:24966 , PIC/M 5516 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
Staff accomodation
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40276 , vital:24967 , PIC/M 5517 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
- Date: 1984
- Subjects: Rhodes University -- History , Rhodes University -- Employees , Rhodes University -- Employees -- Housing
- Type: Image
- Identifier: http://hdl.handle.net/10962/40276 , vital:24967 , PIC/M 5517 , This image is held at the Cory Library for Humanities Research at Rhodes University. For further information contact cory@ru.ac.za. The digitisation of this image was made possible through a generous grant received from the Andrew W. Mellon Foundation 2014-2017.
- Full Text: false
- Date Issued: 1984
The geochemistry of potassic lavas from Vulsini, central Italy and implications for mantle enrichment processes beneath the Roman region
- Rogers, N W, Hawkesworth, C J, Parker, R J, Marsh, Julian S
- Authors: Rogers, N W , Hawkesworth, C J , Parker, R J , Marsh, Julian S
- Date: 1985
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/136034 , vital:37330 , https://doi.org/10.1007/BF00378265
- Description: Major and trace element and 143Nd/144Nd (0.51209–0.51216) and 87Sr/86Sr (0.70879–0.71105) isotope analyses are presented on a representative group of lavas from the Vulsini district of the Roman magmatic province. Three distinct series are identified; the high-K and low-K series are similar to those described from other Italian volcanoes, while the third is represented by a group of relatively undifferentiated leucite basanites which are thought to be near-primary mantle melts.
- Full Text: false
- Date Issued: 1985
- Authors: Rogers, N W , Hawkesworth, C J , Parker, R J , Marsh, Julian S
- Date: 1985
- Language: English
- Type: text , article
- Identifier: http://hdl.handle.net/10962/136034 , vital:37330 , https://doi.org/10.1007/BF00378265
- Description: Major and trace element and 143Nd/144Nd (0.51209–0.51216) and 87Sr/86Sr (0.70879–0.71105) isotope analyses are presented on a representative group of lavas from the Vulsini district of the Roman magmatic province. Three distinct series are identified; the high-K and low-K series are similar to those described from other Italian volcanoes, while the third is represented by a group of relatively undifferentiated leucite basanites which are thought to be near-primary mantle melts.
- Full Text: false
- Date Issued: 1985