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Gypsum Anhydrite Delineation :

Delineation of gypsum/anhydrite transition zone using ...

2011-10-12  Delineation of gypsum/anhydrite transition zone using electrical tomography. A case study in an active open pit, Altsi, Crete, Greece Emmanouil Manoutsoglou*, George Vachlas, George Panagopoulos and Hamdan Hamdan 1 Department of Mineral Resources Engineering, Technical University of Crete, 73100 Chania, Greece *[email protected]

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(PDF) Delineation of gypsum/anhydrite transition zone ...

Delineation of gypsum/anhydrite tran sition zone using electrical tomography. A case study in an active op en . pit, Altsi, Crete, Greece 23. The ERT data acquisition was accomplished .

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Delineation of gypsum/anhydrite transition zone using ...

2011-1-19  Delineation of gypsum/anhydrite transition zone using electrical tomography. A case study in an active open pit, Altsi, Crete, Greece Emmanouil Manoutsoglou*, George Vachlas, George Panagopoulos and Hamdan Hamdan 1 Department of Mineral Resources Engineering, Technical University of Crete, 73100 Chania, Greece *[email protected]

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Gypsum Anhydrite Delineation - ristoranteilcasereccio

Delineation of gypsum/anhydrite transition zone using . Delineation of gypsum/anhydrite transition zone using electrical tomography A case study in an active open pit Altsi Crete Greece 23 The ERT data acquisition was accomplished using the StingR1/Swift AGI system and 27 electrodes To ensure good contact resistances a simple drill was used to open electrode holes on the

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Characterization and Delineation of Gypsum Karst ...

The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karstification. Manifestations of karst within the Castile outcrop are abundant and include sinkholes, subsidence features and caves, both epigene and hypogene in origin.

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Mechanism and Kinetics of Gypsum - Anhydrite ...

The gypsum-anhydrite transformation in aqueous solutions, ... it is necessary to further explore the kinetic behaviors and thereby acquire more precise delineation

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Characterization and Delineation of Karst Geohazards

2016-9-15  Characterization and Delineation of Karst Geohazards along RM652 Using Electrical Resistivity Tomography, Culberson County, Texas ... sert and is commonly referred to as the Gypsum Plain. The major evaporite unit within the study area is the Castile Formation, which consists of gypsum/anhydrite and is high-ly susceptible to dissolution and ...

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Delineation and Evaluation of the Groundwater of

2021-8-17  This hypothesis is corroborated by negative saturation indices regarding minerals of gypsum, halite, and anhydrite (Fig. 16). Moderate correlation between Ca 2+ and SO 4 2− (r = 0.70) is indicating possibility to the participation of gypsumand/or anhydrite dissolution to mineralization of groundwater (Al-Ahmadi, 2013; Zhang et al., 2020).

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"Characterization and Delineation of Karst Geohazards ...

The Delaware Basin of West Texas and southeastern New Mexico is the major western subdivision of the Permian Basin and a northern extension of the Chihuahuan Desert. The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karsting. Manifestations of karst

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Delineation of spring protection zones - ScienceDirect

2010-1-1  The delineation of catchment areas requires a combination of topographic, geologic, hydrogeologic, and hydrologic considerations, using a variety of investigation methods, including water balance, ... sulfate can originate from gypsum or anhydrite layers or from the oxidation of sulfide minerals.

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Characterization and Delineation of Gypsum Karst ...

The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karstification. Manifestations of karst within the Castile outcrop are abundant and include sinkholes, subsidence features and caves, both epigene and hypogene in origin.

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PRELIMINARY DELINEATION AND DESCRIPTION OF THE

2002-3-6  gypsum and anhydrite. As gypsum and anhydrite are highly soluble and would be expected to dissolve under dynamic flow conditions, their presence indicates that no active ground- water flow system has existed in these locations. A conceptual model of flow in the Highland Rim aquifer system is shown in figure 11.

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Balkan Geophysical Society

2011-1-19  DELINEATION OF GYPSUM/ANHYDRITE TRANSITION ZONE USING ELECTRICAL TOMOGRAPHY. A CASE STUDY IN AN ACTIVE OPEN PIT, ALTSI, CRETE, GREECE. 21: Emmanouil Manoutsoglou, George Vachlas, George Panagopoulos and Hamdan Hamdan: Abstract / PDF

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Characterization and Delineation of Karst Geohazards

2016-9-15  Characterization and Delineation of Karst Geohazards along RM652 Using Electrical Resistivity Tomography, Culberson County, Texas ... sert and is commonly referred to as the Gypsum Plain. The major evaporite unit within the study area is the Castile Formation, which consists of gypsum/anhydrite and is high-ly susceptible to dissolution and ...

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"Characterization and Delineation of Karst Geohazards ...

The Delaware Basin of West Texas and southeastern New Mexico is the major western subdivision of the Permian Basin and a northern extension of the Chihuahuan Desert. The major evaporite unit within the Delaware Basin is the Castile Formation, which consists of gypsum/anhydrite and is highly susceptible to dissolution and karsting. Manifestations of karst

More

ISSN 1302-1672 VOLUME 9 (2006) VOLUME 10 (2007)

2011-10-13  Delineation of gypsum/anhydrite transition zone using electrical tomography. A case study in an active open pit, Altsi, Crete, Greece Emmanouil Manoutsoglou, George Vachlas, George Panagopoulos and Hamdan Hamdan..... 37 ISSN 1302-1672

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Recognition of Natural Brine by - USGS

2012-10-23  for the successful delineation of the fresh-water­ salt-water interface in the presence of gypsum and anhydrite deposits. FIELD PROCEDURES AND METHODS OF INTERPRETATION Fourteen vertical electrical soundings were made using the quadrupole Schlumberger array, and one sounding was made using the bipole-dipole equatorial ...

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Application of GPR and ERT methods for recognizing of ...

2019-10-8  Manoutsoglou E, Vachlas G, Panagopoulos G, Hamdan H (2010) Delineation of gypsum/anhydrite transition zone using electrical tomography. A case study in an active open pit, Altsi, Crete, Greece. J Balk Geophys Soc 13(2):21–28. Google Scholar

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Evaporite Karst and Hydrogeology of the Castile

2020-10-13  laminated calcite / gypsum (anhydrite) with interbedded halite. Sulfates are hydrated to gypsum near the surface and throughout the Gypsum Plain, but remain dehydrated in the deeper subsurface. Similarly, halite interbeds are 1993) and hydrology (e.g. Land 2006; Sares, 1984), with limited reporting associated with karst inventories

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DEALING WITH GYPSUM KARST PROBLEMS: HAZARDS,

2021-3-16  James, 1992; Johnson, 2008). Up to 13,000 tonnes of mainly gypsum and anhydrite were dissolved from beneath a dam in the Middle East in only six months causing concerns about the dam stability (Guzina et al., 1991). In China, leaking dams and reservoirs on gypsum include the Huoshipo Dam (Lu and Cooper, 1997) and others in the same area.

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PRELIMINARY DELINEATION AND DESCRIPTION OF THE

2002-3-6  gypsum and anhydrite. As gypsum and anhydrite are highly soluble and would be expected to dissolve under dynamic flow conditions, their presence indicates that no active ground- water flow system has existed in these locations. A conceptual model of flow in the Highland Rim aquifer system is shown in figure 11.

More

Balkan Geophysical Society

2011-1-19  DELINEATION OF GYPSUM/ANHYDRITE TRANSITION ZONE USING ELECTRICAL TOMOGRAPHY. A CASE STUDY IN AN ACTIVE OPEN PIT, ALTSI, CRETE, GREECE. 21: Emmanouil Manoutsoglou, George Vachlas, George Panagopoulos and Hamdan Hamdan: Abstract / PDF

More

Characterization and Delineation of Karst Geohazards

2016-9-15  Characterization and Delineation of Karst Geohazards along RM652 Using Electrical Resistivity Tomography, Culberson County, Texas ... sert and is commonly referred to as the Gypsum Plain. The major evaporite unit within the study area is the Castile Formation, which consists of gypsum/anhydrite and is high-ly susceptible to dissolution and ...

More

(PDF) Methodology for Optimal Determination of New ...

The stiffness of Anhydrite is 3-3.5 in Mohs scale, while for gypsum it is 1.5-2. It is known that gypsum is dehydrated and is transformed to anhydrite as a consequence of geological burial. On the contrary, anhydrite is transformed to gypsum when it comes in contact with fluids dur-

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Recognition of Natural Brine by - USGS

2012-10-23  for the successful delineation of the fresh-water­ salt-water interface in the presence of gypsum and anhydrite deposits. FIELD PROCEDURES AND METHODS OF INTERPRETATION Fourteen vertical electrical soundings were made using the quadrupole Schlumberger array, and one sounding was made using the bipole-dipole equatorial ...

More

Evaporite Karst and Hydrogeology of the Castile

2020-10-13  laminated calcite / gypsum (anhydrite) with interbedded halite. Sulfates are hydrated to gypsum near the surface and throughout the Gypsum Plain, but remain dehydrated in the deeper subsurface. Similarly, halite interbeds are 1993) and hydrology (e.g. Land 2006; Sares, 1984), with limited reporting associated with karst inventories

More

Origin of fracture patterns and insoluble minerals in the ...

2020-10-13  Figure 6. Gypsum-anhydrite equilibrium relations Figure 7. Gravity map of Webster County, Iowa Figure 8. Aerooagnetic map of Webster County, Iowa Figure 9. X-ray diffraction data Figure 10. Vertical variation in the amount of insoluble 22 25 35 37 45 minerals in the Fort Dodge gypsum 53 Figure 11.

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Geoelectrical resistivity variations and lithological ...

2016-3-4  When gypsum and anhydrite have a purity close to 100%, resistivity ranges from 700 to 1000 Ωm and from 2500 to 10 4 Ωm, respectively; when the matrix (i.e., lutite) content in the gypsum rock is higher than 45% resistivity ranges from 100 to 10 Ωm as the percentage of lutite increases from 45 to 100%, regardless of the differences in ...

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The use of location–allocation techniques for exploration ...

2013-9-1  These deposits are composed of red clays and marls with gypsum, anhydrite, halite and minor carbonate layers, and range in thickness from 45 to 105 m. The most significant evaporitic components found in these lithologic units are gypsum and anhydrite (Salvany, 1990, Morad et al., 1995). The Cretaceous gypsum bearing units are Albian in age.

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Karst Regions of the World (KROW): global Karst datasets ...

2018-8-25  18 Figure 1.-Global occurrence of evaporite and carbonate rock. Figure 1a shows ev aporite rocks, most of which (90% of gypsum/anhydrite, 99% of halite) are covered (after Kozary et al., 1968). Figure 1b shows major outcrops of carbonate rocks of the world (after Ford and Williams, 1989).

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