Geochemistry of the oceanic crust from ocean drilling samples


This book presents new data on chemical and mineral compositions and on density of altered and fresh igneous rocks from key DSDP and ODP holes drilled on the following main tectonomagmatic structures of the ocean floor:1. Mid-ocean ridges and abyssal plains and basins (DSDP Legs 37, 61, 63, 64, 65, 69, 70, 83, and 91 and ODP Legs 106, 111, 123, 129, 137, 139, 140, 148, and 169);2. Seamounts and guyots (DSDP Legs 19, 55, and 62 and ODP Legs 143 and 144);3. Intraplate rises (DSDP Legs 26, 33, 51, 52, 53, 72, and 74 and ODP Legs 104, 115, 120, 121, and 183); and4. Marginal seas (DSDP Legs 19, 59, and 60 and ODP Legs 124, 125, 126, 127, 128, and 135).Study results of altered gabbro from the Southwest Indian Ridge (ODP Leg 118) and serpentinized ultramafic rocks from the Galicia margin (ODP Leg 103) are also presented. Samples were collected by the authors from the DSDP/ODP repositories, as well as during some Glomar Challenger and JOIDES Resolution legs.The book also includes descriptions of thin sections, geochemical diagrams, data on secondary mineral assemblages, and recalculated results of chemical analyses with corrections for rock density. Atomic content of each element can be quantified in grams per standard volume (g/1000 cm**3).The suite of results can be used to estimate mass balance, but parts of the data need additional work, which depends on locating fresh analogs of altered rocks studied here. Results of quantitative estimation of element mobility in recovered sections of the upper oceanic crust as a whole are shown for certain cases: Hole 504B (Costa Rica Rift) and Holes 856H, 857C, and 857D (Middle Valley, Juan de Fuca Ridge).

Petrographic descriptions of studied igneous rock samples, as well as X-ray electron diffraction data of secondary minerals can be found here: hdl:10013/epic.33634.d001

Supplement to: Kurnosov, Victor B; Zolotarev, Boris P; Artamonov, Andrey V; Lyapunov, Sergey M; Kashintsev, Georgy L; Chudaev, Oleg V; Sokolova, Alla L; Garanina, Svetlana A (2008): Alteration effects in the upper oceanic crust - data and comments (Technical Note). Geological Institute of the Russian Academy of Sciences, Transactions, vol. 581. Nauka Publ. (Moscow); Leonov, M.G. (Ed.), 1046 pp

Metadata Access
Creator Kurnosov, Victor B; Zolotarev, Boris P; Artamonov, Andrey V; Lyapunov, Sergey M; Kashintsev, Georgy L; Chudaev, Oleg V; Sokolova, Alla L; Garanina, Svetlana A
Publisher PANGAEA
Contributor Russian Academy of Sciences
Publication Year 2008
Rights Creative Commons Attribution 3.0 Unported;
OpenAccess true
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 194 datasets
Discipline Earth System Research
Spatial Coverage (-12.863W, -59.652S, 1.763E, 67.220N); North Pacific/Bering Strait/BASIN; North Pacific/GUYOT; Indian Ocean//RIDGE; South Pacific/PLATEAU; North Atlantic/VALLEY; North Atlantic/CONT RISE; North Pacific/SEDIMENT POND; North Pacific/TERRACE; North Pacific/SEAMOUNT; North Pacific/Philippine Sea/BASIN; North Pacific/Philippine Sea/RIDGE; North Pacific/TRENCH; North Pacific/CONT RISE; North Pacific/ESCARPMENT; North Pacific/FAN; North Pacific/Gulf of California/CONT RISE; North Pacific/Gulf of California/BASIN; North Pacific/Gulf of California/SEDIMENT POND; South Atlantic/CONT RISE; South Atlantic/CREST; South Atlantic; South Atlantic/RIDGE; South Pacific; South Atlantic Ocean; Norwegian Sea; North Pacific Ocean; South Indian Ridge, South Indian Ocean; Indian Ocean; Lakshadweep Sea; Sulu Sea; Mindanao Sea; Philippine Sea; Japan Sea; South Pacific Ocean; Escanaba Trough, North Pacific Ocean
Temporal Coverage Begin 1971-08-28T00:00:00Z
Temporal Coverage End 1999-01-31T06:15:00Z