Diabase

Kohsaka, H. (1975) Geochemical characteristics of the Shimokawa diabase sheets, Hokkaido. Mining Geology, 25, 161-174 (in Japanese with English abst.). 

Mariko, T. (1984) Sub-seafloor hydrothermal alteration of basalt, diabase and the Shimokawa copper mining area, Hokkaido, Japan. Mining Geology, 34, 307-322. 

The presentation finally descends on the very last of the listed chemical precipitation processes, and this pertains to precipitation implemented by carbonate anions (CO-). The dissolution of carbon dioxide takes place with the formation of the weak diabasic acid, H2C03. The overall dissociation of this acid (dissociation constant, KD) is represented by ... 

Figure 9. Exposure pathways based on the averaged coefficients ofbiogeochemical uptake, Cb, of trace metals in Spruce Forest ecosystems of the Karelia top scheme represents the ecosystem with Podzols on diabase outcrops and bottom scheme represents the ecosystem with Podzols on gneiss outcrops. 1—spruce needles 2—spruce bark 3—hypnic mosses 4—leaves and twigs of blueberry (based on Dobrovolsky, 1994).

Armstrong, R.L Ramaekers, P. 1985. Sr isotopic study of Helikian sediment and diabase dikes in the Athabasca Basin, northern Saskatchewan. Canadian Journal of Earth Sciences, 22, 399-407. 

The Guitard Brook deposit (GB) located in the northeast El is hosted by tholeiitic basalt and gabbro of the Devereaux Formation, specifically the Black Point Gabbro and associated trondhjemitic, diabasic dykes, and basaltic flows (Langton, 1993). 

Idea and place a diabase part on tha thematic page... 

A traprock (diabase) aggregate used in Northern Virginia for road construction and having a past history of satisfactory service in asphaltic mixtures was chosen for study. 

Optimum Marshall Binder Contents Sulphlex-233 and AC-20 Asphalt Cement With a Well-Graded Diabase Aggregate... 

No precise correlation is available between the immersion-compression test and results to be expected from pavements in the field. The test provides comparative guidance on water damage susceptibility. For the diabase aggregate, the Sulphlex-233 mixtures measured dry, and after immersign in the case of wet specimens, exceed the 300 psi (2.07 x 10 pascal) minimum compressive strength usually considered necessary for acceptable mixture performance in the field. Retained strengths generally fall below the 70 percent criterion considered acceptable for asphaltic mixtures. 

NICHOLS (C.R.), 1970. Diabase argillation at King Mountain, Kiown Country, Okla. Journ. Sed. Petr. 0 n°3, 838-847. 

A similar normalization for the coal and various crustal components can be performed using the transition elements Co, Cr, Fe, Mn, Ni, and V. Table VIII shows this normalization to iron for coal, granite, diabase, and crustal average materials. As with the earlier elements, the ratio of transition metals appears to approximate the crustal average composition. Thus, it appears that the concentrations of the transition elements may also be explained by the incorporation of geological materials in the coal. 

Figure 3. Relations of coal measures strata to diabase sills in the Ohio Range and at Mt.

CGL no. H Distance below thick diabase sill (ft.) CGL no. H Distance below summit (ft.)... 

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