Origin of authigenic clay minerals and their significance in petroleum geology

Sarkisyan, S. G.

doi:10.1016/0037-0738(72)90050-4

Cited by 29 publications

(9 citation statements)

References 9 publications

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“…Several authors (Weiss and Roloff, 1963;Sarkisyan, 1972;Blank et al, 1973;Zimmerle, 1985) stressed the importance of clay minerals as catalysts during the transformation of organic matter. In particular Hunt (1979) concluded that smectite-type clay minerals can play an impor tant role in the production of hydrocarbons from organic matter, due to their large active sur face area.…”

Section: Resultsmentioning

confidence: 99%

Light hydrocarbons in gas-emissions from volcanic areas and geothermal fields.

et al. 1993

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Section: Resultsmentioning

confidence: 99%

Light hydrocarbons in gas-emissions from volcanic areas and geothermal fields.

et al. 1993

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“…Clay minerals are therefore considered since a long time as useful tools in search for oil (e.g., Weaver 1960, Burst 1969, Sarkisyan 1972. The nature and abundance of clay minerals in a given rock may significantly affect its reservoir or cap-rock properties.…”

Section: Application To Ou Explorationmentioning

confidence: 99%

Clay Sedimentology

Chamley¹

1989

866

449

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“…A 'chlorite-swelling chlorite' regular inter-stratification (Stephen &MacEwan, 1951), a 'corrensite' anda 'chlorite-vermiculite' (Martin Vivaldi &MacEwan, 1960) and a 'chlorite-montmorillonite' (Sarkisyan & Kotelnikov, 1972) have all given 28 30/~ peaks when air-dry, a slight expansion (of 2 4 •) upon glyceration, and either a 28-29 A spacing peak or no peak at a spacing greater than 14 ,~ when heated at 500~ The samples studied here each show most of these characteristics. Thus a phase which is most accurately described as a regular interstratification of chlorite and swelling chlorite is present in the Harihari, Obelisk, Puketeraki and Bealey soils.…”

Section: Xrd Data For a Horizon Samplesmentioning

confidence: 99%

Clay minerals formed from micas and chlorites in some New Zealand soils

Churchman¹

1980

Clay miner.

117

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Clay mineralogical differences between eight soils in South Island, New Zealand, are related to differences in climate, vegetation, and formation time. Alteration of chlorite follows the sequence chlorite--*interlayered hydrous mica-~chlorite-swelling chlorite--*chlorite-vermiculite, with increased weathering leading to the destruction of the chloritic layers. Mica (muscovite) follows two alteration sequences depending on the overlying vegetation. Under tussock grassland the sequence is mica~mica-vernaiculite~mica-beidellite~beidellite. This sequence is also followed under beech forest, together with the sequence of mica-~vermiculite~beidellite, with pedogenic chlorite forming when the pH is > 4.5. All but one of the interstratified products (the interlayered hydrous mica) appear to be based on a 1:1 regular interlayering of the two components.Monosequences of soils, over which changes in soil properties can be attributed to variations in only one of the major soil-forming factors (Jenny, 1941), are valuable in indicating soil weathering processes, provided that the practical limitations of the monosequence approach are recognized (Crocker, 1952;Jenny, 1958; Walker, 1965;Campbell, 1975). The variety and complexity of the products of weathering transformations of micas and chlorites have been described by many workers (Rich, 1956;Gjems, 1960Gjems, , 1963Gjems, , 1970 Wilson, 1970;Campbell, 1975;De Coninck et al., 1975; Loveland & Bullock, t975;Moberg, 1976;Buurmann et al., 1976;Bain, 1977). The present paper describes some effects of the major soil-forming factors of vegetation and formation time upon the mineral transformations of some micas and chlorites by comparing the clay mineralogies of a number of New Zealand soils which have been arranged in pairs into two similar vegesequences and an approximate chronosequence. Results are integrated with those of an earlier climosequence study (Churchman, 1978) in order to elucidate the mechanisms of transformations of these minerals in soils. SOILSThe soils studied are described in Table 1 in terms of the major factors influencing their formation and are arranged in approximate order of soil development. In addition, they are grouped for the purpose of deducing the effects of three main soil-forming factors (vegetation, time and climate) on mineral weathering, as indicated by the superscripts in the Table. One major factor varies within each group while other factors remain either largely constant or else show variations which are considered insignificant beside those of the major factor giving the name to the group.

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Origin of authigenic clay minerals and their significance in petroleum geology

Cited by 29 publications

References 9 publications

Light hydrocarbons in gas-emissions from volcanic areas and geothermal fields.

Light hydrocarbons in gas-emissions from volcanic areas and geothermal fields.

Clay Sedimentology

Clay minerals formed from micas and chlorites in some New Zealand soils

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