The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on... more The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on top of a major basement horst. Field and laboratory data from several ore deposits indicate that Pb–Zn mineralization took place in dolomite strata by ascending hot, saline fluids probably during the Late Jurassic. The geochemistry of the ore fluid and the mineralization have been tentatively modelled
<p>ATTARIK Foundation an NGO dedicated to Meteoritics and Planetary Science promoti... more <p>ATTARIK Foundation an NGO dedicated to Meteoritics and Planetary Science promotion in Morocco, Africa, and Arab countries</p> <ul> <li>Chennaoui Aoudjehane<sup>1,2</sup>, S. Arif<sup>1,2</sup>, F.Z Jadid<sup>1,2</sup> E. El Hachemi<sup>1,2</sup>, L. Zennouri<sup>1,2</sup>, S. Makhoukhi<sup>1,2</sup>, E. Ould Mohamed Naviee, O. Berrada<sup>2,3</sup>, M. Aoudjehane<sup>2,4</sup> and N. Bouya<sup>2</sup>, <sup>1</sup>GAIA Laboratory, Hassan II University of Casablanca, Faculty of Science Ain Chock, Morocco (hassna.chennaoui@univh2c.ma), <sup>2</sup>ATTARIK Foundation for Meteoritics and Planetary Science, <sup>3</sup>Yasmine Signature, <sup>4</sup>Agrokit Morocco</li> </ul> <p> </p> <p>Since 1999 first meteorite recoveries in Morocco, meteorites from our country became more and more important in number and scientific input in the planetary scientists' community. Our team in the Hassan II University of Casablanca Faculty of Science Ain Chock begin working on meteorites in 2011 introducing this topic to Moroccan universities and Moroccan society. Valuable scientific research and publications were conducted including Ph.D. thesis defenses. It was oriented first on Martian meteorites, then to all meteorite classes, then to impact cratering research. Now we are also going for planetary surfaces studies.  </p> <p>In 2019, ATTARIK Foundation for Meteoritics and Planetary Science was created by our team and a group of passionate people. It is the result of the long experience in this research in Morocco. The aim of ATTARIK is to improve the research on Planetary Sciences, disseminate sciences through youth, promote Moroccan geoheritage, and develop Moroccan territories through geotourism and astrotourism. The Africa Initiative for Planetary and Space Science was launched in 2016 in Cape Town and has similar objectives.</p> <p>ATTARIK Foundation become a reference in Morocco, it organized a great number of activities during its three years of existence. Among these activities are lecturing to children, youths, and the general public, and workshops on discovering meteorites and how to differentiate terrestrial and extraterrestrial rocks. We also supported much scientific research of the Ph.D. students with financial support. Geotourism circuits were also prepared in two different regions of Morocco (Tizi N’oucheg, Ait Ben Haddou, and Skoura). The most important achievement of ATTARIK this year was the organization and launching of the first and unique exhibit-museum of meteorites in Morocco. This ephemera museum contains the freshest Moroccan meteorite falls samples, the solar system, impact craters, dinosaurs, and space missions. It was initially designed for two months (July and August 2021) in an important commercial mall in Casablanca (AnfaPlace Mall). This activity had great success, and the Mall administration allowed the Foundation to extend the exhibit to the end of June 2022 making it open for one complete year.</p> <p>The Moroccan experience can be a good reference to the development of planetary sciences in Africa and the Arab countries. ATTARIK Foundation aims to extend actions organized in Morocco to other countries in Africa and the MENA region.</p>
Lechmine n’Aït El Haj (LNH) is a monogenetic plioquaternary maar, lying in the volcanic province ... more Lechmine n’Aït El Haj (LNH) is a monogenetic plioquaternary maar, lying in the volcanic province of the MiddleAtlas. It is a 110-m-deep crater located in the Liassic limestones. The tephra deposits surrounding the crater are mainly made up of depositional units (surges and projectas) interpreted as deposits of phreatomagmatic origin. They are topped by a small unit of massive breccia tuff reflecting magmatic deposits. The maar is a result of the interaction between the ascending magma and karstic water, in an intraplate volcanism context. Water, causing this eruption, is drained by an open system of fractures in the limestone. The explosion started by phreatomagmatic dynamism, producing a big stack of pyroclastic deposits and pyroclastic falls. During the eruption, the crater grows progressively from the eruptive center to the Northwest. The upper part of the phreatomagmatic deposits is characterized by a typical mud crack structure. A transition to a strombolian dynamism occurred t...
A Ba- and Ti-rich mica (up to 14.0 wt% BaO and 13.1 wt% TiO 2 ) occurs in nephelinites from the M... more A Ba- and Ti-rich mica (up to 14.0 wt% BaO and 13.1 wt% TiO 2 ) occurs in nephelinites from the Middle Atlas Volcanic Province, Morocco. The rocks show a porphyritic texture composed of olivine, Ti-rich augite, nepheline and Ti-rich magnetite. Oxyphlogopite is found in secondary assemblages consisting of zeolites, clinopyroxene and Ti-oxides. This mineral occurs mostly as euhedral to subhedral crystals lining the walls of zeolitic veinlets and cavities in the nephelinites. The coupled substitutions of (1) Ba for K in the interlayer site and Si for Al in the tetrahedral site and (2) Ti 4+ for Mg in the octahedral site and O 2− in the (OH, F) site are major mechanisms of Ba and Ti incorporation in these micas. The average structural formula, calculated on the basis of 12 (O, OH, F, Cl), is (Si 2.515 -Al 1.482 -Fe 3+ 0.003 ) 4.000 (Al 0.050 -Ti 0.661 -Fe 2+ 0.798 -Mn 0.012 -Mg 1.500 ) 3.021 (Ca 0.014 -Ba 0.398 -Na 0.066 -K 0.502 ) 0.980 O 10 (F 0.308 -Cl 0.009 -O 1.319 -OH 0.365 ) 2.00...
The Lechmine n’Aït el Haj maar (LNH) is a mixed phreatomagmatic-strombolian vent located in the C... more The Lechmine n’Aït el Haj maar (LNH) is a mixed phreatomagmatic-strombolian vent located in the Causse of the Middle Atlas. The application of tephrostratigraphic, and geophysical studies to the volcaniclastic deposits allowed interpreting the volcanic dynamics of this volcano set up during the Quaternary. Pyroclastic deposits allow us to understand the chronology of the eruptions. These are organized in four eruptive phases. The basal sequences are phreatomagmatic, followed by a strombolian unit. The last activity of LNH is phreatomagmatic. The structural analysis revealed a localized distension signed by fracture geometry, the mixed nature of the volcanism, tectonic markers, and the mechanisms of syn-eruptive tectonics. This subsidence, controlled by the NW-SE to WNW-ESE directions tends towards a strike-slip regime fault NE–SW during the phreatomagmatic-strombolian transition. The latter is favored by the position of the LNH volcano on the path of faults of cryptokarstic origin. ...
The Magmatism of Tighza Mining District (TMD), as other districts of central Meseta (Zaer, Ment, ... more The Magmatism of Tighza Mining District (TMD), as other districts of central Meseta (Zaer, Ment, Oulmès), is essentially Hercynian. This magmatism consists mostly of granitic intrusions cross-cutting the Paleozoic formations in the form of apophyses, and several veins and magmatic dykes. The Anjdam area is located in the south of the TMD in the eastern part of the Central Hercynian Mountains, at the limit of the thrust nappe zone. The Palaeozoic terrains ranging from the Upper Ordovician to the Middle Devonian show a clear diversity, presenting a geometry, in nappes and thrusts with an E to S-E vergence, following a NE-SW trend. The lithostratigraphic study of the different deposits of this area, shows a variation in the depth of depositional environment. It draws an evolution from deep, to turbiditic, and then to shallow deposits. Furthermore, the eastern sector is marked by a well recorded synsedimentary tectonics during the Paleozoic. The petrographic study of the magmatic comple...
The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on... more The Touissit-Bou Beker district mineralization is located in a lower Jurassic condensed series on top of a major basement horst. Field and laboratory data from several ore deposits indicate that Pb–Zn mineralization took place in dolomite strata by ascending hot, saline fluids probably during the Late Jurassic. The geochemistry of the ore fluid and the mineralization have been tentatively modelled
<p>ATTARIK Foundation an NGO dedicated to Meteoritics and Planetary Science promoti... more <p>ATTARIK Foundation an NGO dedicated to Meteoritics and Planetary Science promotion in Morocco, Africa, and Arab countries</p> <ul> <li>Chennaoui Aoudjehane<sup>1,2</sup>, S. Arif<sup>1,2</sup>, F.Z Jadid<sup>1,2</sup> E. El Hachemi<sup>1,2</sup>, L. Zennouri<sup>1,2</sup>, S. Makhoukhi<sup>1,2</sup>, E. Ould Mohamed Naviee, O. Berrada<sup>2,3</sup>, M. Aoudjehane<sup>2,4</sup> and N. Bouya<sup>2</sup>, <sup>1</sup>GAIA Laboratory, Hassan II University of Casablanca, Faculty of Science Ain Chock, Morocco (hassna.chennaoui@univh2c.ma), <sup>2</sup>ATTARIK Foundation for Meteoritics and Planetary Science, <sup>3</sup>Yasmine Signature, <sup>4</sup>Agrokit Morocco</li> </ul> <p> </p> <p>Since 1999 first meteorite recoveries in Morocco, meteorites from our country became more and more important in number and scientific input in the planetary scientists' community. Our team in the Hassan II University of Casablanca Faculty of Science Ain Chock begin working on meteorites in 2011 introducing this topic to Moroccan universities and Moroccan society. Valuable scientific research and publications were conducted including Ph.D. thesis defenses. It was oriented first on Martian meteorites, then to all meteorite classes, then to impact cratering research. Now we are also going for planetary surfaces studies.  </p> <p>In 2019, ATTARIK Foundation for Meteoritics and Planetary Science was created by our team and a group of passionate people. It is the result of the long experience in this research in Morocco. The aim of ATTARIK is to improve the research on Planetary Sciences, disseminate sciences through youth, promote Moroccan geoheritage, and develop Moroccan territories through geotourism and astrotourism. The Africa Initiative for Planetary and Space Science was launched in 2016 in Cape Town and has similar objectives.</p> <p>ATTARIK Foundation become a reference in Morocco, it organized a great number of activities during its three years of existence. Among these activities are lecturing to children, youths, and the general public, and workshops on discovering meteorites and how to differentiate terrestrial and extraterrestrial rocks. We also supported much scientific research of the Ph.D. students with financial support. Geotourism circuits were also prepared in two different regions of Morocco (Tizi N’oucheg, Ait Ben Haddou, and Skoura). The most important achievement of ATTARIK this year was the organization and launching of the first and unique exhibit-museum of meteorites in Morocco. This ephemera museum contains the freshest Moroccan meteorite falls samples, the solar system, impact craters, dinosaurs, and space missions. It was initially designed for two months (July and August 2021) in an important commercial mall in Casablanca (AnfaPlace Mall). This activity had great success, and the Mall administration allowed the Foundation to extend the exhibit to the end of June 2022 making it open for one complete year.</p> <p>The Moroccan experience can be a good reference to the development of planetary sciences in Africa and the Arab countries. ATTARIK Foundation aims to extend actions organized in Morocco to other countries in Africa and the MENA region.</p>
Lechmine n’Aït El Haj (LNH) is a monogenetic plioquaternary maar, lying in the volcanic province ... more Lechmine n’Aït El Haj (LNH) is a monogenetic plioquaternary maar, lying in the volcanic province of the MiddleAtlas. It is a 110-m-deep crater located in the Liassic limestones. The tephra deposits surrounding the crater are mainly made up of depositional units (surges and projectas) interpreted as deposits of phreatomagmatic origin. They are topped by a small unit of massive breccia tuff reflecting magmatic deposits. The maar is a result of the interaction between the ascending magma and karstic water, in an intraplate volcanism context. Water, causing this eruption, is drained by an open system of fractures in the limestone. The explosion started by phreatomagmatic dynamism, producing a big stack of pyroclastic deposits and pyroclastic falls. During the eruption, the crater grows progressively from the eruptive center to the Northwest. The upper part of the phreatomagmatic deposits is characterized by a typical mud crack structure. A transition to a strombolian dynamism occurred t...
A Ba- and Ti-rich mica (up to 14.0 wt% BaO and 13.1 wt% TiO 2 ) occurs in nephelinites from the M... more A Ba- and Ti-rich mica (up to 14.0 wt% BaO and 13.1 wt% TiO 2 ) occurs in nephelinites from the Middle Atlas Volcanic Province, Morocco. The rocks show a porphyritic texture composed of olivine, Ti-rich augite, nepheline and Ti-rich magnetite. Oxyphlogopite is found in secondary assemblages consisting of zeolites, clinopyroxene and Ti-oxides. This mineral occurs mostly as euhedral to subhedral crystals lining the walls of zeolitic veinlets and cavities in the nephelinites. The coupled substitutions of (1) Ba for K in the interlayer site and Si for Al in the tetrahedral site and (2) Ti 4+ for Mg in the octahedral site and O 2− in the (OH, F) site are major mechanisms of Ba and Ti incorporation in these micas. The average structural formula, calculated on the basis of 12 (O, OH, F, Cl), is (Si 2.515 -Al 1.482 -Fe 3+ 0.003 ) 4.000 (Al 0.050 -Ti 0.661 -Fe 2+ 0.798 -Mn 0.012 -Mg 1.500 ) 3.021 (Ca 0.014 -Ba 0.398 -Na 0.066 -K 0.502 ) 0.980 O 10 (F 0.308 -Cl 0.009 -O 1.319 -OH 0.365 ) 2.00...
The Lechmine n’Aït el Haj maar (LNH) is a mixed phreatomagmatic-strombolian vent located in the C... more The Lechmine n’Aït el Haj maar (LNH) is a mixed phreatomagmatic-strombolian vent located in the Causse of the Middle Atlas. The application of tephrostratigraphic, and geophysical studies to the volcaniclastic deposits allowed interpreting the volcanic dynamics of this volcano set up during the Quaternary. Pyroclastic deposits allow us to understand the chronology of the eruptions. These are organized in four eruptive phases. The basal sequences are phreatomagmatic, followed by a strombolian unit. The last activity of LNH is phreatomagmatic. The structural analysis revealed a localized distension signed by fracture geometry, the mixed nature of the volcanism, tectonic markers, and the mechanisms of syn-eruptive tectonics. This subsidence, controlled by the NW-SE to WNW-ESE directions tends towards a strike-slip regime fault NE–SW during the phreatomagmatic-strombolian transition. The latter is favored by the position of the LNH volcano on the path of faults of cryptokarstic origin. ...
The Magmatism of Tighza Mining District (TMD), as other districts of central Meseta (Zaer, Ment, ... more The Magmatism of Tighza Mining District (TMD), as other districts of central Meseta (Zaer, Ment, Oulmès), is essentially Hercynian. This magmatism consists mostly of granitic intrusions cross-cutting the Paleozoic formations in the form of apophyses, and several veins and magmatic dykes. The Anjdam area is located in the south of the TMD in the eastern part of the Central Hercynian Mountains, at the limit of the thrust nappe zone. The Palaeozoic terrains ranging from the Upper Ordovician to the Middle Devonian show a clear diversity, presenting a geometry, in nappes and thrusts with an E to S-E vergence, following a NE-SW trend. The lithostratigraphic study of the different deposits of this area, shows a variation in the depth of depositional environment. It draws an evolution from deep, to turbiditic, and then to shallow deposits. Furthermore, the eastern sector is marked by a well recorded synsedimentary tectonics during the Paleozoic. The petrographic study of the magmatic comple...
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