Geochemical barriers: theory and practical applications

Perel’man, Aleksandr I.

doi:10.1016/0883-2927(86)90088-0

Cited by 67 publications

(29 citation statements)

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“…Perelman developed the methodology of this science and the areas of its concern as being: geochemical classification of natural landscapes, element migration (mechanical, physical-chemical, biogenic and technogenic), classification of geochemical barriers, paleogeochemistry and historical geochemistry of landscapes, landscape-geochemical mapping (Perel'man, 1961(Perel'man, , 1975(Perel'man, , 1986.…”

Section: Water and Landscapes: The Influence Of The Russian School Ofmentioning

confidence: 99%

“…Perel'man developed some of the ideas on ore-forming (supergene) processes and with others developed models of U and other metal accumulations, connected with weathering processes. The concept of geochemical barriers and zonality was developed by Perel'man (1986), combining the established experience of geochemistry of landscapes with the growing knowledge and understanding of groundwater processes. Perel'man's book (1977) was an important step in bringing a generation of Russian geochemical thinking to western English speaking audiences.…”

Section: Hydrogeochemical Processes and Systemsmentioning

confidence: 99%

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Geochemistry of natural waters – The legacy of V.I. Vernadsky and his students

Edmunds

Bogush

2012

Applied Geochemistry

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Section: Water and Landscapes: The Influence Of The Russian School Ofmentioning

confidence: 99%

Section: Hydrogeochemical Processes and Systemsmentioning

confidence: 99%

Geochemistry of natural waters – The legacy of V.I. Vernadsky and his students

Edmunds

Bogush

2012

Applied Geochemistry

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“…The solutions responsible for the epigenetic changes in the carbonates entered the Judea Group carbonate strata along fault zones. The mineral deposition most likely occurred as a result of the metal-bearing waters encountering a geochemical barrier and then precipitating their metal burden (Perelman 1986). Such a geochemical barrier can be established where acidic and reducing fluids enter the alkaline and oxidizing environment of the Judea Group carbonates.…”

Section: Crbo-oroov An I;:i : :I'mentioning

confidence: 99%

Epigenetic manganese occurrences within Cretaceous strata of Israel

et al. 1990

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Abstract. Epigenetic manganese mineralization occurs within Cretaceous carbonate strata of Israel. This mineralization is structurally controlled. In southern Israel, manganese-and iron-bearing waters rising along fault zones precipitated these metals as different redox conditions were encountered. The manganese and associated trace-metals are believed to be leached from magrnatic bodies by corrosive deep-seated brines in southern Israel and circulating meteoric waters in northern Israel.Israel is a country poor in ore-mineral, and most areas are covered by thick sequences of sediments, predominantly carbonates, which at first glance do not appear to be likely sites for metalliferous ores. Yet deep-seated faults of the Dead Sea Rift system (Fig. I), along which Israel is located, have at times served as conduits for rising fluids (Ilani et al. 1987a;Segev and Sass 1989). In southern Israel these fluids were brines rich in iron and in places also rich in manganese and other trace-metals (Ilani et al. 1988). The Cretaceous carbonate strata provided suitable depositories for the metals.In Israel, manganese mineralization has been described in rocks of the Precambrian igneous basement (Bentor 1952;Ayalon et al. 1985) as well as in the overlying Paleozoic sediments in the Negev (Timna) (BarMatthews 1986;Segev 1986) and southern Sinai (Um Bogma) (Mart and Sass 1972). Syngenetic and epigenetic modes of mineralization have been suggested for these deposits (Bentor 1956;Mart and Sass 1972;Bartura and Wurzburger 1974;Magaritz 1969;Bar-Matthews 1986;Segev 1986;Segev and Sass 1989). In Jordan, along the eastern margins of the Dead Sea-Arava Rift Valley, syngenetic manganese occurs in Cambrian sandstones at Feinan (Bender 1974).The present study is concerned with the occurrence of epigenetic manganese in Late Cretaceous marine carbonate formations. This mineralization is restricted to fault zones that are related to the Dead Sea Rift, which has been active since the Miocene. It has been previously suggested (Ilani et al. 1985(Ilani et al. , 1987a) that exploration for metals within the sedimentary carbonate cover can be guided by tectonic patterns. Part of the manganese mineralization occurrences are found in the contact zone or in the vicinity of exposed intrusive volcanic bodies. Therefore, it is proposed that the ore-depositing solutions were formed as fluids leached metals from buried intrusive bodies. As the solutions encountered different redox conditions, iron and manganese minerals were precipitated within the carbonate host rock.Manganese mineralization occurrences, most of which were discovered in the course of the present work, were mapped in the field. At each site, several samples were collected along the face of the outcrop, as well as from the country rock. A total of 37 samples representing the manganese mineralizations from 7 sites and 30 samples of the various associated country rocks (limestones, dolomites and volcanics) were studied in the laboratory. The chemical composition of all of these samples was de...

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“…Barriers are zones in the landscape with sharp physical or chemical gradients in environmental factors in the transport pathway of substances and they are often associated with accumulation of certain elements and compounds. According to Perelman (1986), four basic classes of barriers can be distinguished: 1) mechanical, 2) physico-chemical, 3) biochemical, and 4) anthropogenic. The simplest are mechanical barriers, that is, zones with a sharp decrease in the intensity of mechanical transport, such as a zone of stream discharge into a lake where water flow slows down.…”

Section: Geochemical Landscape Functioningmentioning

confidence: 99%

“…Because of their importance in contaminant transport and risk assessment, physico-chemical barriers are further classified according to the specific physicochemical factor that causes element concentration (Perelman, 1986) (Table 2). According to Perelman (1986), waters are chemically classified based on their pH (strongly acidic: pH 5 3, weakly acidic: pH 3-6.5, neutral and weakly alkaline: pH 6.5-8.5 and strongly alkaline (sodic): pH 4 8.5) and oxidizing state (oxidizing, moderately reducing and strongly reducing) yielding 12 classes of waters in the landscape ( Table 2).…”

Section: Geochemical Landscape Functioningmentioning

confidence: 99%

Geochemical Landscape Analysis: Development and Application to the Risk Assessment of Acid Mine Drainage. A Case Study in Central Sweden

Jordán¹,

Szucs

2011

Landscape Research

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Acid mine drainage containing toxic contaminants is a major cause of landscape degradation at numerous historic mine sites in Europe. Risk assessment of acid mine drainage and related polluted lands requires an approach that is able to study the complexity of pollution emissions and impacted landscapes. The objective of this paper is to link geochemical contaminant fate modelling and landscape analysis for the risk assessment of acid mine drainage along the source-pathway-receptor chain. A simple geochemical landscape analysis tool is developed using landscape ecology spatial analysis and geochemical modelling methods. A case study is presented for the analysis of geochemical landscapes in central Sweden. Results show that the method can be used efficiently for the risk assessment of toxic mine contaminants in the complex wetland landscape in the study area.

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Geochemical barriers: theory and practical applications

Cited by 67 publications

References 1 publication

Geochemistry of natural waters – The legacy of V.I. Vernadsky and his students

Geochemistry of natural waters – The legacy of V.I. Vernadsky and his students

Epigenetic manganese occurrences within Cretaceous strata of Israel

Geochemical Landscape Analysis: Development and Application to the Risk Assessment of Acid Mine Drainage. A Case Study in Central Sweden

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