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Partager le résultat de cette recherche Interroger des sources externesRéalisation d'un microsystème et developpement du logiciel pour la commande et l'exploitation d'un calculateur hybride / Nadia Sidahmed
Titre : Réalisation d'un microsystème et developpement du logiciel pour la commande et l'exploitation d'un calculateur hybride Type de document : texte imprimé Auteurs : Nadia Sidahmed ; U.S.T.H.B., Editeur scientifique ; Boualem Sansal, Directeur de thèse Année de publication : 1985 Importance : 100 f. Note générale : 01 Disponible au magazin de la bibliothèque centrale Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Commande Dévéloppement Exploitation Logiciel Microsystème Calculateur hybride Index. décimale : 621 Electronique Diplôme : Magistère En ligne : ../theses/electronique/SID1507.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=2701 Réalisation d'un microsystème et developpement du logiciel pour la commande et l'exploitation d'un calculateur hybride [texte imprimé] / Nadia Sidahmed ; U.S.T.H.B., Editeur scientifique ; Boualem Sansal, Directeur de thèse . - 1985 . - 100 f.
01 Disponible au magazin de la bibliothèque centrale
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Commande Dévéloppement Exploitation Logiciel Microsystème Calculateur hybride Index. décimale : 621 Electronique Diplôme : Magistère En ligne : ../theses/electronique/SID1507.pdf Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=2701 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité SID/1507 SID/1507 Thèse Bibliothèque principale Thèses Disponible
Titre : إستخدام الفصاء الخارجي و انعكاساته Type de document : texte imprimé Auteurs : نادية لزعر, Auteur ; عبد الحميد حسنة, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 229 ورقة. Format : 30 سم. Note générale : 2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
القانونTags : ??????? ?????? ????? ????? ?????? ??????? ??????? ???????? ???????? ?????? ??? ?????? ?????? ??????? ????????? ????????? ???? ????????? ???????? ?????? ????????? ????? ?????? ????????? ??????? ??????? ?????? ??????? ?????????? -????????? ?????? ???????? ?????? ??????? ????? ?????? ??????? ????? ? ????? ???????? ????? ? ??????? ???????? ?????? ???? ?????? ?????? ???????
Droit international public télédétection espace extra atmosphèrec implications juridiques aérospatial la sécurité nationale la responsabilité internationale international spy des objets spatiaux satellites droit de l'espace utilisation exploration exploitation la paix et la sécurité internationales lune et les autres corps célestes les astronautes l'orbite géostationnaire droit international public droit de l'espace extra atmosphérique les satellites orbite débris interférence international law remote sensing outer space aerospace national security international responsiblitity space objects satellite space law use exploratin international peace and security moon and other celestial bodies astronaute orbit debris interferanceIndex. décimale : 340 القانون Résumé : The last century witnessed great Technological evolution was credited primarily to the
development of uses of outer space that have achieved the interest of all mankind in all
fields, and it is still considered as a new area needs a lot of research and study.
This a new Human activity was needed to find legal rules organize it, so since the
beginning the United Nations had establish a legal regime governing the exploration, use
and Later the exploitation of outer space, and succeeded thanks to the Committee on the
Peaceful Uses efforts and the respond of states to codify this area, so isn’t be a scene of
conflict and competition between countries in period of divisions and Cold War.
the United Nations efforts Crowned by realization of a number of important decisions
were considered the cornerstone in the formation of a new legal branch called the
international space law, and the most important agreement was the outer space treaty in
1967, and was followed by several agreements related to the Rescue of Astronauts and
restore absolute bodybuilding in 1968, and the Convention on Liability for Damage in 1972
and the Convention of Registration of objects Launched in 1975, then the agreement which
governs the activities of States on the moon in 1979.
Although the importance of these agreements, but it did not resolve the legal problems
posed by the use of space, especially in light of the development of those activities and
increase the number of actors in this area, this is why the United Nations thinking of a new
legal resolutions, so it was the resolution of principles of the television broadcast in1982,
and the principles of earth sensation in 1986.
The rapid development of this area made the mission of the UN difficult to find
solutions to those legal problematic, but with the specialized international organizations and
non-governmental organizations interested in outer space efforts it helped to release many
collective and bilateral decisions that had a positive impact in solving modern problems such
as pollution of outer space environment and the jamming and space debris.
International cooperation is the only way to achieve greater efficiency for the use of
this area and keep it as a common area of humanity and as a limited natural resource.Diplôme : Magistère En ligne : ../theses/droit/ALEZ4109.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10173 إستخدام الفصاء الخارجي و انعكاساته [texte imprimé] / نادية لزعر, Auteur ; عبد الحميد حسنة, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2016 . - 229 ورقة. ; 30 سم.
2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
القانونTags : ??????? ?????? ????? ????? ?????? ??????? ??????? ???????? ???????? ?????? ??? ?????? ?????? ??????? ????????? ????????? ???? ????????? ???????? ?????? ????????? ????? ?????? ????????? ??????? ??????? ?????? ??????? ?????????? -????????? ?????? ???????? ?????? ??????? ????? ?????? ??????? ????? ? ????? ???????? ????? ? ??????? ???????? ?????? ???? ?????? ?????? ???????
Droit international public télédétection espace extra atmosphèrec implications juridiques aérospatial la sécurité nationale la responsabilité internationale international spy des objets spatiaux satellites droit de l'espace utilisation exploration exploitation la paix et la sécurité internationales lune et les autres corps célestes les astronautes l'orbite géostationnaire droit international public droit de l'espace extra atmosphérique les satellites orbite débris interférence international law remote sensing outer space aerospace national security international responsiblitity space objects satellite space law use exploratin international peace and security moon and other celestial bodies astronaute orbit debris interferanceIndex. décimale : 340 القانون Résumé : The last century witnessed great Technological evolution was credited primarily to the
development of uses of outer space that have achieved the interest of all mankind in all
fields, and it is still considered as a new area needs a lot of research and study.
This a new Human activity was needed to find legal rules organize it, so since the
beginning the United Nations had establish a legal regime governing the exploration, use
and Later the exploitation of outer space, and succeeded thanks to the Committee on the
Peaceful Uses efforts and the respond of states to codify this area, so isn’t be a scene of
conflict and competition between countries in period of divisions and Cold War.
the United Nations efforts Crowned by realization of a number of important decisions
were considered the cornerstone in the formation of a new legal branch called the
international space law, and the most important agreement was the outer space treaty in
1967, and was followed by several agreements related to the Rescue of Astronauts and
restore absolute bodybuilding in 1968, and the Convention on Liability for Damage in 1972
and the Convention of Registration of objects Launched in 1975, then the agreement which
governs the activities of States on the moon in 1979.
Although the importance of these agreements, but it did not resolve the legal problems
posed by the use of space, especially in light of the development of those activities and
increase the number of actors in this area, this is why the United Nations thinking of a new
legal resolutions, so it was the resolution of principles of the television broadcast in1982,
and the principles of earth sensation in 1986.
The rapid development of this area made the mission of the UN difficult to find
solutions to those legal problematic, but with the specialized international organizations and
non-governmental organizations interested in outer space efforts it helped to release many
collective and bilateral decisions that had a positive impact in solving modern problems such
as pollution of outer space environment and the jamming and space debris.
International cooperation is the only way to achieve greater efficiency for the use of
this area and keep it as a common area of humanity and as a limited natural resource.Diplôme : Magistère En ligne : ../theses/droit/ALEZ4109.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10173 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité لزع/4109 لزع/4109 Thèse Bibliothèque principale Thèses Disponible
Titre : حماية المنافسة من الاستغلال التعسفي لوضعية التبعية الاقتصادية. Type de document : texte imprimé Auteurs : عفاف جواد, Auteur ; عصام حوادق, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 367 ورقة. Format : 30 سم. Note générale : 2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara) Catégories : Arabe
القانونTags : ???????? ?????? ????????? ????? ??????? ??????? ?????????? competition arbitrariness exploitation market enterprise economic dependency concurrence abus marché institution dépendance économique Index. décimale : 340 القانون Résumé : The relationship client-supplier often, under the relationship of economic dependency, allow the occurrence of situations against the competition rules. One of these situations, the misuse of economic dependency or, as it is known, the abuse in the status of economic dependency that is a case of anticompetitive practices prohibited by competition law articles. As an example of
this, the situation where a company or institution disrespect the status of accreditation or the dependency of another company or institution. In order to face abuse in the economic dependence, three conditions must be met:
1- The existence economic dependency situation either entirely or partially.
2- The misuse or abuse of this situation.
3- Actual or potential allocation of performance or structure of competition in the market.
These conditions must be combined to lead to the adaptation of abuse in the economic dependency status.
The concept of economic dependency is much larger than that of the judicial dependency that makes it possible to punish all the behaviors that involve abuse of the economic dependency status. These behaviors lead to the creation of imbalance of the economic forces, abuse, and objective dominance in market relations like it is the case with the dominant status or the status of
subordinate for the situation of economic dependency. All these behaviors actually expose partners to the economic risk. In addition to the practices and conditions mentioned above, any
behavior that can't be done by the economic trader, if he doesn't depend on his partner particularly, may create abuse in the status of the economic dependency.
It should be noted that, as it is the case with the status of hegemony, there couldn't be any abuse in the status of economic dependency unless there is any behavior from the complainant (the follower) it adapts that it is "" abnormal"".
Only by this we can say that each behavior distinguishes a practice from the anti-competitive practices can't be prosecuted unless it indicates a misuse or abuse under the economic dependency which its actual or potential effects are sufficient concrete based on the causal relationship between the state of economic dependency and the abuse practices. In other words, the abuse
exploitation must be achieved through the use of economic dependency.
As a result, mechanisms are put to insure a well-managed market that can be controlled and organized through enacting laws that monitor and punish the practice of abuse in the status of economic dependency and to deter all violations of competition rules through the competition council and judiciary.
Diplôme : Doctorat En ligne : ../theses/droit/ADJE4334.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10941 حماية المنافسة من الاستغلال التعسفي لوضعية التبعية الاقتصادية. [texte imprimé] / عفاف جواد, Auteur ; عصام حوادق, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2018 . - 367 ورقة. ; 30 سم.
2نسخ موجودة مكتبة المركزية
Langues : Arabe (ara)
Catégories : Arabe
القانونTags : ???????? ?????? ????????? ????? ??????? ??????? ?????????? competition arbitrariness exploitation market enterprise economic dependency concurrence abus marché institution dépendance économique Index. décimale : 340 القانون Résumé : The relationship client-supplier often, under the relationship of economic dependency, allow the occurrence of situations against the competition rules. One of these situations, the misuse of economic dependency or, as it is known, the abuse in the status of economic dependency that is a case of anticompetitive practices prohibited by competition law articles. As an example of
this, the situation where a company or institution disrespect the status of accreditation or the dependency of another company or institution. In order to face abuse in the economic dependence, three conditions must be met:
1- The existence economic dependency situation either entirely or partially.
2- The misuse or abuse of this situation.
3- Actual or potential allocation of performance or structure of competition in the market.
These conditions must be combined to lead to the adaptation of abuse in the economic dependency status.
The concept of economic dependency is much larger than that of the judicial dependency that makes it possible to punish all the behaviors that involve abuse of the economic dependency status. These behaviors lead to the creation of imbalance of the economic forces, abuse, and objective dominance in market relations like it is the case with the dominant status or the status of
subordinate for the situation of economic dependency. All these behaviors actually expose partners to the economic risk. In addition to the practices and conditions mentioned above, any
behavior that can't be done by the economic trader, if he doesn't depend on his partner particularly, may create abuse in the status of the economic dependency.
It should be noted that, as it is the case with the status of hegemony, there couldn't be any abuse in the status of economic dependency unless there is any behavior from the complainant (the follower) it adapts that it is "" abnormal"".
Only by this we can say that each behavior distinguishes a practice from the anti-competitive practices can't be prosecuted unless it indicates a misuse or abuse under the economic dependency which its actual or potential effects are sufficient concrete based on the causal relationship between the state of economic dependency and the abuse practices. In other words, the abuse
exploitation must be achieved through the use of economic dependency.
As a result, mechanisms are put to insure a well-managed market that can be controlled and organized through enacting laws that monitor and punish the practice of abuse in the status of economic dependency and to deter all violations of competition rules through the competition council and judiciary.
Diplôme : Doctorat En ligne : ../theses/droit/ADJE4334.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10941 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité جوا/4334 جوا/4334 Thèse Bibliothèque principale Thèses Disponible
Titre : Les carrières de marbre du massif de Filfila (Est de Skikda ; Algérie nord-orientale) Type de document : texte imprimé Auteurs : Dahmane Bououden, Auteur ; Ramdane Marmi, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2015 Importance : 159 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Sciences de la terreTags : Filfila Métamorphisme Marbre Fissuration Minéralogie Exploitation metamorphism marble fissuring mineralogy ????? ???? ?????? ??????? Index. décimale : 550 Sciences de la terre Résumé : The study area belongs to the internal domain of the Alpine chain in the north-eastern of Algeria, in which Filfila massif, including marble deposit, is a segment of the base Kabylie.
The marble deposit of Filfila massif appeared like a tectonic window due to the erosion of the base of Petite Kabylie, it is the result of a contact metamorphic of average degree, which accrued between the granitic intrusions of the Langhian Age and the carbonate formations of the Lias, which occupied the lowest stratigraphic position in the parautochthon complex.
Petrographic study of deferens facies of the marble at this deposit has shown the carbonate nature of the marble; the opened gray colour is the most dominant one (72.75%).
The mineralogical study of the marbles revealed its richness by the calcite (94 to 99 %), this latter has a massive texture and essentially microcrystalline structure, and apparently it was recrystallized from a homogenous limestone, affected in some location by dolometazation.
The treatment of the marble chemical data of the samplings indicates of the homogeneity of the marble, and its stability of CaCO3 in depth with content varies from 94 to 99%, it is also characterized by the presence of small amounts of oxides of some elements.
The analysis of the fracturing as a key criterion in assessing the quality of the marble has shown a vertical development, in general way; the major orientation of the cracks is to the NE-SW, (N40°-60 °E).
The applied method of exploitation in the Filfila quarry relies on the use both of the cutter machine and diamond wire together, but the existence of fracturing in the marble of this deposit requires a specific technique. While the high intensity of fracturing in the marble of El-Chatt quarry justifies its operations by explosives, knowing that more than 70 % of the marble reserve in this deposit are not yet extracted.
However in order to improve the rate of recuperation of the marble that we extract from the quarry of Filfila ( decrease scraps to the minimum) , we should guide the operating front in a direction parallel to the major direction of cracking in the marbles, in order to extract blocks with a minimum cracks (1st choice).
We suggest also spending the upper part of El-Chatt quarry for producing the powders, because it consists essentially of the white marble.
Diplôme : Magistère En ligne : ../theses/sc-terre/BOU6679.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9948 Les carrières de marbre du massif de Filfila (Est de Skikda ; Algérie nord-orientale) [texte imprimé] / Dahmane Bououden, Auteur ; Ramdane Marmi, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2015 . - 159 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Sciences de la terreTags : Filfila Métamorphisme Marbre Fissuration Minéralogie Exploitation metamorphism marble fissuring mineralogy ????? ???? ?????? ??????? Index. décimale : 550 Sciences de la terre Résumé : The study area belongs to the internal domain of the Alpine chain in the north-eastern of Algeria, in which Filfila massif, including marble deposit, is a segment of the base Kabylie.
The marble deposit of Filfila massif appeared like a tectonic window due to the erosion of the base of Petite Kabylie, it is the result of a contact metamorphic of average degree, which accrued between the granitic intrusions of the Langhian Age and the carbonate formations of the Lias, which occupied the lowest stratigraphic position in the parautochthon complex.
Petrographic study of deferens facies of the marble at this deposit has shown the carbonate nature of the marble; the opened gray colour is the most dominant one (72.75%).
The mineralogical study of the marbles revealed its richness by the calcite (94 to 99 %), this latter has a massive texture and essentially microcrystalline structure, and apparently it was recrystallized from a homogenous limestone, affected in some location by dolometazation.
The treatment of the marble chemical data of the samplings indicates of the homogeneity of the marble, and its stability of CaCO3 in depth with content varies from 94 to 99%, it is also characterized by the presence of small amounts of oxides of some elements.
The analysis of the fracturing as a key criterion in assessing the quality of the marble has shown a vertical development, in general way; the major orientation of the cracks is to the NE-SW, (N40°-60 °E).
The applied method of exploitation in the Filfila quarry relies on the use both of the cutter machine and diamond wire together, but the existence of fracturing in the marble of this deposit requires a specific technique. While the high intensity of fracturing in the marble of El-Chatt quarry justifies its operations by explosives, knowing that more than 70 % of the marble reserve in this deposit are not yet extracted.
However in order to improve the rate of recuperation of the marble that we extract from the quarry of Filfila ( decrease scraps to the minimum) , we should guide the operating front in a direction parallel to the major direction of cracking in the marbles, in order to extract blocks with a minimum cracks (1st choice).
We suggest also spending the upper part of El-Chatt quarry for producing the powders, because it consists essentially of the white marble.
Diplôme : Magistère En ligne : ../theses/sc-terre/BOU6679.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=9948 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6679 BOU/6679 Thèse Bibliothèque principale Thèses Disponible
Titre : Les formations évaporitiques triasiques des hautes plaines Sétifiennes (NE Algérien) : Répartition et caractrisation des substances minirales associées Type de document : texte imprimé Auteurs : Aboutaleb Mezerzi, Auteur ; Abdeslam Demdoum, Directeur de thèse ; Ramdane Marmi, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2015 Importance : 178 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
Sciences de la terreTags : Hautes plaines sétifiènnes koudiat El Bassour diapir sel gemme gypse cuivre fer Draa El Djebbas exploitation répartition guelle triasique caractérisation évaporites Setifian high plains triassic rock salt gypsum copper iron guellal characterization evaporites ?????? ?????? ????????? ????????? ?????? ????? ???? ????? ?????? ???? ??????? ???? ?????? Index. décimale : 550 Sciences de la terre Résumé : tract The main purpose of this work was the characterization of minerals associated with evaporite Triassic formations of the Setifian High Plains.
In the north eastern of Algeria and between the two barriers of mountains, Hodna in
South and Babors in North, situated a vast plains, commonly known as the Setifian High
Plains. This zone occupies the central part of the wilaya of Setif, and it's a part of the externe areas of the Alps, eastern Algeria, between the Tellian slicks in the North and the forward land autochton in the South. It is considered a closed continental basin, filled by Neogene and Quaternary deposits.
The genesis of evaporite deposits caused by the lagoon system that prevailed in the Triassic era with an arid climate and a high degree of evaporation which led to the precipitation of ions, Ca ++ So3--, Na +, Cl-, giving salt deposits and gypsum.
The spatial distribution, and the surface movement of the Triassic evaporite formations in the Setifian High Plains would probably caused by the phenomenon of overlapping slicks of alloctons to the south. We find five (5) evaporite formations dating from the Triassic; Guellal, Koudiat el Bassour, Methgoub Ras, Draa El Djebbas and Jebel el Garsa.
The principal minerals related to Triassic outcrops are represented essentially by evaporite deposits (gypsum and rock salt) .The particularity is marked by the presence of metallic minerals (iron and copper) in the blocks associated with evaporites Koudiat El Bassour.
The iron mineralization associated with copper, is hosted mainly in carbonate rocks, considered by the ancient writers as an infraliasiques formation. The morphology of the mineralized bodies is characterized essentially by a vein shape and stockworks type.
The mineralogical characterization by XRD and metallographic microscopic observation shows that the mineralization is usually oxidized brown-black (hematite, goethite, limonite) developed on iron carbonate (siderite, ankerite) associated with a few sulphides (chalcopyrite covellite, pyrite) and copper carbonate (malachite).
Gypsum deposits are widespread in all the Triassic outcrops of the region; it comes in four (4) forms (fibrous, crystalline, microcrystalline and grainy). The Gîtologics characters, the mineralogical characterization by XRD and chemical analysis by fluorescence X show that the gypsum is characterized by a variation of quality and quantity in an outcrops to another. As such, the economic importance gypsum deposit is observed in the Triassic of Guellal.
Contrary to gypsum, rock salt (halite) is prevalent only in the depth of the Triassic
outcrop in Guellal, and is forming a deposit of a great economic importance.
Geological, gîtologic and chemical characteristics of the rock salt deposits are the source of economic interest. Geophysical, mining and hydrogeological works of research in the diapir, which resulted an exploitation of salts for human consumption and industrial purposes.
The exploitation is more methodical, it is provided by the ENASel.Diplôme : Magistère En ligne : ../theses/sc-terre/MEZ6885.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10208 Les formations évaporitiques triasiques des hautes plaines Sétifiennes (NE Algérien) : Répartition et caractrisation des substances minirales associées [texte imprimé] / Aboutaleb Mezerzi, Auteur ; Abdeslam Demdoum, Directeur de thèse ; Ramdane Marmi, Directeur de thèse . - [S.l.] : جامعة الإخوة منتوري قسنطينة, 2015 . - 178 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
Sciences de la terreTags : Hautes plaines sétifiènnes koudiat El Bassour diapir sel gemme gypse cuivre fer Draa El Djebbas exploitation répartition guelle triasique caractérisation évaporites Setifian high plains triassic rock salt gypsum copper iron guellal characterization evaporites ?????? ?????? ????????? ????????? ?????? ????? ???? ????? ?????? ???? ??????? ???? ?????? Index. décimale : 550 Sciences de la terre Résumé : tract The main purpose of this work was the characterization of minerals associated with evaporite Triassic formations of the Setifian High Plains.
In the north eastern of Algeria and between the two barriers of mountains, Hodna in
South and Babors in North, situated a vast plains, commonly known as the Setifian High
Plains. This zone occupies the central part of the wilaya of Setif, and it's a part of the externe areas of the Alps, eastern Algeria, between the Tellian slicks in the North and the forward land autochton in the South. It is considered a closed continental basin, filled by Neogene and Quaternary deposits.
The genesis of evaporite deposits caused by the lagoon system that prevailed in the Triassic era with an arid climate and a high degree of evaporation which led to the precipitation of ions, Ca ++ So3--, Na +, Cl-, giving salt deposits and gypsum.
The spatial distribution, and the surface movement of the Triassic evaporite formations in the Setifian High Plains would probably caused by the phenomenon of overlapping slicks of alloctons to the south. We find five (5) evaporite formations dating from the Triassic; Guellal, Koudiat el Bassour, Methgoub Ras, Draa El Djebbas and Jebel el Garsa.
The principal minerals related to Triassic outcrops are represented essentially by evaporite deposits (gypsum and rock salt) .The particularity is marked by the presence of metallic minerals (iron and copper) in the blocks associated with evaporites Koudiat El Bassour.
The iron mineralization associated with copper, is hosted mainly in carbonate rocks, considered by the ancient writers as an infraliasiques formation. The morphology of the mineralized bodies is characterized essentially by a vein shape and stockworks type.
The mineralogical characterization by XRD and metallographic microscopic observation shows that the mineralization is usually oxidized brown-black (hematite, goethite, limonite) developed on iron carbonate (siderite, ankerite) associated with a few sulphides (chalcopyrite covellite, pyrite) and copper carbonate (malachite).
Gypsum deposits are widespread in all the Triassic outcrops of the region; it comes in four (4) forms (fibrous, crystalline, microcrystalline and grainy). The Gîtologics characters, the mineralogical characterization by XRD and chemical analysis by fluorescence X show that the gypsum is characterized by a variation of quality and quantity in an outcrops to another. As such, the economic importance gypsum deposit is observed in the Triassic of Guellal.
Contrary to gypsum, rock salt (halite) is prevalent only in the depth of the Triassic
outcrop in Guellal, and is forming a deposit of a great economic importance.
Geological, gîtologic and chemical characteristics of the rock salt deposits are the source of economic interest. Geophysical, mining and hydrogeological works of research in the diapir, which resulted an exploitation of salts for human consumption and industrial purposes.
The exploitation is more methodical, it is provided by the ENASel.Diplôme : Magistère En ligne : ../theses/sc-terre/MEZ6885.pdf Format de la ressource électronique : Permalink : https://bu.umc.edu.dz/md/index.php?lvl=notice_display&id=10208 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MEZ/6885 MEZ/6885 Thèse Bibliothèque principale Thèses Disponible Permalink
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