The lowest eTh values (less than 70 ppm) are primarily related to the Um Barmil Formation, metagabbro, metasediments, Tertiary basalt, and metavolcanic. Similarly, the eU map (Fig. 12C) is divided into three levels. The higher level, ranging up to 20 ppm, is associated with the younger...
1993. Trace element behavior in the alkali basalt - comenditic trachyte series from Mururoa Atoll, French Polynesia. Lithos, 30: 1-22.Caroff, M., Maury, R.C., Leterrier, J., Joron, J.L., Cotton, J., Guille, G., 1993. Trace element behavior in the alkali basalt-comenditic ...
(a fused glass of the Columbia River Basalt) was analyzed in each analytical run as quality control in order to assess the accuracy and the reproducibility of the analyses. Precision and accuracies are better than 10% for all the analyzed elements53,54. The analyses of quality controls ...
Cu is also leached from the basalt, but often shows local precipitation in veins as sulfides. Fe, B, Li, Ba, Mn, Ni and Co show sufficient variations in concentration and location within the altered basalts to indicate that some mobilisation occurs, but there may be subsequent uptake or ...
; Mid Ocean Ridge basalt (MOR), Markov Depression and Beriozovskiy gabbro, Russia (Lesnov2013) Full size image Similar to the approach used for apatite, we plotted the lambda coefficient ratios obtained for zircons in this study together with lambda ratios of zircons from various well-...
An enriched-mantle source of ocean island basalt affinity is precluded by the relative depletion of high field strength elements, especially Nb which shows negative anomalies in chondrite-normalized patterns. On the contrary, a subduction-related origin for the LILE enrichment would be more consistent...
6) Basalt fiber roving and Basalt fiber reinforced coposite. 7) Alumina tubes, alumina crucible 8) Other related products.Payment Methods & Packaging & Shipping1) Payment Methods: T/T advance, L/C, or Western Union. 2) Packing: from the inside to outer pack...
–iron alteration type record leaching combined with weak to strong mass losses. Pure sodic alteration depleted the rocks in Ca, Co, Cu, Fe, Mg, Th, U and V. Conversely, sodic–calcic–iron alteration records significant depletions of Nb, REE, Ta, Ti, Th and U. These element mobility ...
(1987), andBarrett and Jarvis (1988); PAAS fromTaylor and McLenann (1985); NASC (North American shale composite) fromGromet et al. (1984)andGoldstein and Jacobsen (1988); MORB (mid-ocean ridge basalt) fromFloyd and Castillo (1992); and OIB (ocean island basalt) fromChristie et al. ...
11/27/1984 Export Citation: Click for automatic bibliography generation Assignee: BASALTIN GMBH & CO International Classes: E01F8/00E04B1/82E04B1/35E04B1/84(IPC1-7):E04B2/72E04C2/46E04C2/52 Domestic Patent Refe