Zobrazeno 1 - 10
of 87
pro vyhledávání: '"Christopher J. MacLeod"'
Autor:
Max N. Jansen, Christopher J. MacLeod, C. Johan Lissenberg, Ian J. Parkinson, Daniel J. Condon
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 3, Pp n/a-n/a (2024)
Abstract Enriched mid‐ocean ridge basalts (E‐MORB) commonly erupt at mid‐ocean ridges (MOR) and seamounts, but their relationship to “depleted” MORB (D‐MORB) and the processes controlling their magmatic evolution at MORs are not fully und
Externí odkaz:
https://doaj.org/article/67ddf2aea8e5414b8dba216529fc8f27
Autor:
Henry J. B. Dick, Astri J. S. Kvassnes, Paul T. Robinson, Christopher J. MacLeod, Hajimu Kinoshita
Publikováno v:
Progress in Earth and Planetary Science, Vol 6, Iss 1, Pp 1-70 (2019)
Abstract This paper presents the first detailed geologic map of in situ lower ocean crust; the product of six surveys of Atlantis Bank on the SW Indian Ridge. This combined with major and trace element compositions of primary magmatic phases in 99 se
Externí odkaz:
https://doaj.org/article/c644bb773e434bcab7a207368ac52ef0
Autor:
Alessio Sanfilippo, Christopher J. MacLeod, Riccardo Tribuzio, C. Johan Lissenberg, Alberto Zanetti
Publikováno v:
Frontiers in Earth Science, Vol 8 (2020)
Microtextural and chemical evidence from gabbros indicates that melts may react with the crystal framework as they migrate through crystal mushes beneath mid-ocean ridges; however, the importance of this process for the compositional evolution of min
Externí odkaz:
https://doaj.org/article/25d3f61a39634ac79cbf3aec5c998a9a
Autor:
Christopher J. MacLeod, the IODP Expeditions 304–305 Scientists, D. Jay Miller, Yasuhiko Ohara, Barbara E. John, Donna Blackman, Benoit Ildefonse
Publikováno v:
Scientific Drilling, Iss 3, Pp 4-11 (2006)
More than forty years after the Mohole Project (Bascom, 1961), the goal of drilling a complete section through in situ oceanic crust remains unachieved. Deep Sea Drilling Project – Ocean Drilling Program (DSDP-ODP) Hole 504B within the eastern Paci
Externí odkaz:
https://doaj.org/article/dbf2be5769ec45c7a5297583c0fd1e17
Autor:
Andrew J. Martin, John W. Jamieson, Cornel E. J. de Ronde, Susan E. Humphris, Iain McDonald, Graham D. Layne, Glenn Piercey, Christopher J. MacLeod
Publikováno v:
Mineralium Deposita. 58:403-425
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05d1ccf5968f531381218aa6848fc683
https://doi.org/10.1007/s00126-022-01135-x
https://doi.org/10.1007/s00126-022-01135-x
Autor:
Andrew J. Martin, Christopher J. MacLeod, Katie A. McFall, Iain McDonald, John W. Jamieson, Sophie Cox
Publikováno v:
Economic Geology.
Accumulations of sulfide minerals that are enriched in Ni-Cu-Co-(As) occur as sea floor massive sulfide (SMS) deposits associated with ultramafic rock types on the sea floor and in ophiolite terranes as Outokumpu-type mineralization. In this study we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::76ac07c48865ba2cb86ccdd0ed1eb678
https://doi.org/10.5382/econgeo.4996
https://doi.org/10.5382/econgeo.4996
Autor:
Iain McDonald, John Jamieson, Andrew J. Martin, Graham D. Layne, Glenn Piercey, Katie McFall, Gawen R.T. Jenkin, Christopher J. MacLeod
Publikováno v:
Mineralium Deposita. 57:911-933
The link between metal enrichment and the addition of a magmatic volatile phase in volcanogenic massive sulfide deposits and actively forming seafloor massive sulfide deposits remains poorly characterized. This is especially true when considering how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2661706397e8b74dadc837dce137d0ae
https://doi.org/10.1007/s00126-021-01080-1
https://doi.org/10.1007/s00126-021-01080-1
Autor:
Carlotta Ferrando, Riccardo Tribuzio, C Johan Lissenberg, Lydéric France, Christopher J MacLeod, Valentin Basch, Johan Villeneuve, Etienne Deloule, Alessio Sanfilippo
Publikováno v:
Journal of Petrology. 63
Brown amphibole is a minor but common mineral component in lower oceanic crust. It is generally interpreted as products of migrating SiO2 and H2O-rich fluids or melts, which can be either residual melts from advanced magmatic differentiation of Mid-O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2d23e120c7027931bd3c7c613bb20f9
https://doi.org/10.1093/petrology/egac089
https://doi.org/10.1093/petrology/egac089
Autor:
Andrew J. Martin, John W. Jamieson, Cornel E.J. de Ronde, Susan E. Humphris, Stephen Roberts, Christopher J. MacLeod, Yuanfeng Cai, Chao Zhang, Lucy E.M. Schlicht, Tatsuo Nozaki
Publikováno v:
Economic Geology.
The hydrothermally active Brothers volcano on the Kermadec arc, New Zealand, hosts two geochemically distinct hydrothermal systems within a single caldera. At the NW Caldera, metal-sulfide–rich black smoker spires form on the caldera wall. In contr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1f0769dfe7ddf52b6a9e731dbfae8f7
https://doi.org/10.5382/econgeo.4962
https://doi.org/10.5382/econgeo.4962
Autor:
Katie McFall, Iain McDonald, Hazel Margaret Prichard, Christopher J. MacLeod, Andrew J. Martin
Publikováno v:
Mineralium Deposita. 56:805-822
The Troodos ophiolite Cyprus hosts the on-land analogue for actively forming mafic, Cu-rich, or Cyprus-type VMS deposits. In addition to high-temperature (> 350 °C) sulfide mound-related mineralization, other fossil seafloor mineralizing systems are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0dd65e9f1c5d8f6c3a9faa2be26e9a28
https://doi.org/10.1007/s00126-020-01007-2
https://doi.org/10.1007/s00126-020-01007-2