eric gilli | Universite Paris-8, France (original) (raw)
Papers by eric gilli
HAL (Le Centre pour la Communication Scientifique Directe), 1999
Phot. 4: Polished section of the sample where different collapse levels are visible (cave of the ... more Phot. 4: Polished section of the sample where different collapse levels are visible (cave of the Observatoire, Monaco). Coupe polie de la carotte montrant différents niveaux de chutes dans la grotte de l'Observatoire (Monaco).
Cave and karst systems of the world, Jun 21, 2020
Cave and karst systems of the world, Jun 21, 2020
Port Miou and Le Bestouan are two submarine karst springs that are located in Cassis, in the Cala... more Port Miou and Le Bestouan are two submarine karst springs that are located in Cassis, in the Calanques massif, near Marseille city (Southern France)). Both springs are brackish. The water flows from deep and long caves explored since the 1960s. A project of water catchment took place in the 1970s but it failed and was abandoned. Exploration is still going on. In 2017 the cave diver Xavier Meniscus reached the depth of 233 m in Port Miou cave.
Cave and karst systems of the world, 2019
The caves have long been frequented by humans who used them for shelter and as a burial place. Wh... more The caves have long been frequented by humans who used them for shelter and as a burial place. When the caves were first explored by humans is not known. The prehistory of Madagascar remains poorly known. Settlement seems to have begun around the sixth century.
Cave and karst systems of the world, 2019
The very northern part of Northern Ankarana is almost unexplored and contains many caves, most of... more The very northern part of Northern Ankarana is almost unexplored and contains many caves, most of which belong to a single network that drains towards the Ankara Spring. The explorations conducted by J. Radofilao aimed at trying to connect these different caves but several possible connections are sumps. This poses the problem of cave diving in rivers frequented by crocodiles.
Karstologia, 2002
Gilli Eric. Datation haute résolution de spéléothèmes (230TH/234U et 226Ra/238U). Application aux... more Gilli Eric. Datation haute résolution de spéléothèmes (230TH/234U et 226Ra/238U). Application aux reconstitutions environnementales autour des sites du Gard et Meuse/Haute Marne (France), par Edwige Pons-Branchu, thèse de géologie, Université de Marseille III. In: Karstologia : revue de karstologie et de spéléologie physique, n°39, 1er semestre 2002. Fantôme de roche (Belgique) et Relations glacier-karst (Jura méridional) pp. 59-60
Cave and karst systems of the world, 2019
A large karst area, the Analamera, extends northeast of the Ankarana Plateau. Recent exploration ... more A large karst area, the Analamera, extends northeast of the Ankarana Plateau. Recent exploration northeast of the Ankarana Plateau, led by the French caver J. C. Dobrilla, has indicated important speleological potential. He found an incredible maze, the Antsarahaso, whose length of 20 km makes it the third longest cave in Madagascar (Fig. 9.1).
Cave and karst systems of the world, 2019
The Antankarana people inhabit the extreme north of Madagascar, from Ambilobe to Cap d’Ambre and,... more The Antankarana people inhabit the extreme north of Madagascar, from Ambilobe to Cap d’Ambre and, in particular, the regions of the Montagne d’Ambre and the Ankarana. Their name means “those of the Ankarana”.
Cave and karst systems of the world, 2019
The difficulty encountered when trying to traverse the massif coupled with the presence of water,... more The difficulty encountered when trying to traverse the massif coupled with the presence of water, even in the dry season, has the advantage of making the Ankarana an area where animals and plants are naturally protected. The following lists are a very rough inventory of what may be encountered while visiting the place. Small animals like insects are too numerous to be presented here, but one to look out for is the larva of Phromnia rosea. It looks like a small white inflorescence gently moving on some plants.
CRC Press eBooks, Apr 22, 2015
, was originally published in French as Karstologie-Karsts, Grottes et Sources (2011), Dunod Edit... more , was originally published in French as Karstologie-Karsts, Grottes et Sources (2011), Dunod Editeur, Paris. The reviewed English version (2015) was translated by Chloé Fandel, Department of Water Resources, University of Arizona. Karstology is a field that combines geomorphology, geology, hydrogeology, engineering, paleontology, archeology, and climatology. However in France, it is traditionally considered a subtopic of geography. This book contains 22 chapters, as well as an introduction and bibliography. It gives a good representation of the field, with many color images, and explores a wide range of topics from the viewpoints of surface and underground morphology, as well as time. It covers many karst areas, although many world-famous examples are not included. Chapters 1 and 2 introduce definitions, principles, and the history of karst science. Many authors consider Cvijić to be the founder of modern geomorphic and hydrologic karst studies in the late eighteenth and early nineteenth centuries (Ford, 2007). But Gilli regards Hacquet in the late eighteenth century to be a more valid candidate on the basis of his several books on karst written in 1778-79. Chapter 3 concerns carbonate rocks. The coverage is not as comprehensive as that of Ford and Williams (2007). From the book title, one might expect greater attention to this topic. Chapter 4 covers the process of dissolution and other relevant factors, and Chapter 5 introduces karst surface forms such as karren, dolines, and poljes. Gilli divides the factors affecting karst landforms into five categories: structural, topographic, pedological (soil types), meteorological, and biological. The more common classification of these features as given by Bögli (1980) and Ford and Williams (2007) receives limited coverage. In Chapter 6, karst landscapes in various climates are considered. Caves and other underground karst features are divided between two chapters, 7 and 10. In addition, Chapters 11, 12, and 14 about aquifers could have been combined into a single chapter. In view of the growing interest in coastal karst, Gilli has covered this topic in a separate Chapter 14 on coastal and submarine karst aquifers. Chapter 13 on water use, management, and risks in karst areas, is very important. Given the fragility of karst areas, improper use of land and water resources has caused many problems in karst regions. In Chapter 15, land management in karst is the main issue. Many examples are given of land subsidence and dam failure in various karst areas of the world, and methods of detecting them are described, such as the use of radar tracking. This book gives greater attention to tourism in karst and caves than do other general books on karst. In recent years, tourism in karst areas has been an increasing consideration, and its importance is emphasized in Chapter 16. This chapter is limited only to caves, although surface karst forms are also important for tourism. Many tourist caves in the world are described, but there are no photos of dramatic surface karst such as tower karst in southeastern Asia. Damage to caves by tourists and amateur cavers is mentioned only briefly. In Chapter 17, mineral resources in karst are described. Traditional resources such as bauxite and guano are covered, but the greatest attention is given to hydrocarbon resources in karst. A minor omission is travertine, which is widely used as building stone. Chapters 18 and 19 concern thermal springs and paleokarst respectively. They are only 2 and 21 pages long, and
Geodinamica Acta, Jun 1, 2010
Comptes Rendus Geoscience, Sep 1, 2006
A new method of interpretation of the Q–C hysteresis (discharge–salinity) during high water is pr... more A new method of interpretation of the Q–C hysteresis (discharge–salinity) during high water is proposed using the data recorded on coastal brackish karstic springs with salinity inversely proportional to the discharge. The method, based on the Qmer–CT (seawater discharge–salinity) hysteresis, identifies the effect of the hydrodynamic changes on the flow and transport. Three phenomena are characterized: the emptying of the
Advances in karst science, Nov 1, 2020
Advances in karst science, Nov 1, 2020
Cave and karst systems of the world, Jun 21, 2020
Cave and karst systems of the world, Jun 21, 2020
The survey of submarine cave is a challenge due to the short time divers have for doing it. Rebre... more The survey of submarine cave is a challenge due to the short time divers have for doing it. Rebreathers, dive computers and specific automatic survey computers are now used. To enhance the precision underground beacons can be installed and detected from the surface.
HAL (Le Centre pour la Communication Scientifique Directe), 1999
Phot. 4: Polished section of the sample where different collapse levels are visible (cave of the ... more Phot. 4: Polished section of the sample where different collapse levels are visible (cave of the Observatoire, Monaco). Coupe polie de la carotte montrant différents niveaux de chutes dans la grotte de l'Observatoire (Monaco).
Cave and karst systems of the world, Jun 21, 2020
Cave and karst systems of the world, Jun 21, 2020
Port Miou and Le Bestouan are two submarine karst springs that are located in Cassis, in the Cala... more Port Miou and Le Bestouan are two submarine karst springs that are located in Cassis, in the Calanques massif, near Marseille city (Southern France)). Both springs are brackish. The water flows from deep and long caves explored since the 1960s. A project of water catchment took place in the 1970s but it failed and was abandoned. Exploration is still going on. In 2017 the cave diver Xavier Meniscus reached the depth of 233 m in Port Miou cave.
Cave and karst systems of the world, 2019
The caves have long been frequented by humans who used them for shelter and as a burial place. Wh... more The caves have long been frequented by humans who used them for shelter and as a burial place. When the caves were first explored by humans is not known. The prehistory of Madagascar remains poorly known. Settlement seems to have begun around the sixth century.
Cave and karst systems of the world, 2019
The very northern part of Northern Ankarana is almost unexplored and contains many caves, most of... more The very northern part of Northern Ankarana is almost unexplored and contains many caves, most of which belong to a single network that drains towards the Ankara Spring. The explorations conducted by J. Radofilao aimed at trying to connect these different caves but several possible connections are sumps. This poses the problem of cave diving in rivers frequented by crocodiles.
Karstologia, 2002
Gilli Eric. Datation haute résolution de spéléothèmes (230TH/234U et 226Ra/238U). Application aux... more Gilli Eric. Datation haute résolution de spéléothèmes (230TH/234U et 226Ra/238U). Application aux reconstitutions environnementales autour des sites du Gard et Meuse/Haute Marne (France), par Edwige Pons-Branchu, thèse de géologie, Université de Marseille III. In: Karstologia : revue de karstologie et de spéléologie physique, n°39, 1er semestre 2002. Fantôme de roche (Belgique) et Relations glacier-karst (Jura méridional) pp. 59-60
Cave and karst systems of the world, 2019
A large karst area, the Analamera, extends northeast of the Ankarana Plateau. Recent exploration ... more A large karst area, the Analamera, extends northeast of the Ankarana Plateau. Recent exploration northeast of the Ankarana Plateau, led by the French caver J. C. Dobrilla, has indicated important speleological potential. He found an incredible maze, the Antsarahaso, whose length of 20 km makes it the third longest cave in Madagascar (Fig. 9.1).
Cave and karst systems of the world, 2019
The Antankarana people inhabit the extreme north of Madagascar, from Ambilobe to Cap d’Ambre and,... more The Antankarana people inhabit the extreme north of Madagascar, from Ambilobe to Cap d’Ambre and, in particular, the regions of the Montagne d’Ambre and the Ankarana. Their name means “those of the Ankarana”.
Cave and karst systems of the world, 2019
The difficulty encountered when trying to traverse the massif coupled with the presence of water,... more The difficulty encountered when trying to traverse the massif coupled with the presence of water, even in the dry season, has the advantage of making the Ankarana an area where animals and plants are naturally protected. The following lists are a very rough inventory of what may be encountered while visiting the place. Small animals like insects are too numerous to be presented here, but one to look out for is the larva of Phromnia rosea. It looks like a small white inflorescence gently moving on some plants.
CRC Press eBooks, Apr 22, 2015
, was originally published in French as Karstologie-Karsts, Grottes et Sources (2011), Dunod Edit... more , was originally published in French as Karstologie-Karsts, Grottes et Sources (2011), Dunod Editeur, Paris. The reviewed English version (2015) was translated by Chloé Fandel, Department of Water Resources, University of Arizona. Karstology is a field that combines geomorphology, geology, hydrogeology, engineering, paleontology, archeology, and climatology. However in France, it is traditionally considered a subtopic of geography. This book contains 22 chapters, as well as an introduction and bibliography. It gives a good representation of the field, with many color images, and explores a wide range of topics from the viewpoints of surface and underground morphology, as well as time. It covers many karst areas, although many world-famous examples are not included. Chapters 1 and 2 introduce definitions, principles, and the history of karst science. Many authors consider Cvijić to be the founder of modern geomorphic and hydrologic karst studies in the late eighteenth and early nineteenth centuries (Ford, 2007). But Gilli regards Hacquet in the late eighteenth century to be a more valid candidate on the basis of his several books on karst written in 1778-79. Chapter 3 concerns carbonate rocks. The coverage is not as comprehensive as that of Ford and Williams (2007). From the book title, one might expect greater attention to this topic. Chapter 4 covers the process of dissolution and other relevant factors, and Chapter 5 introduces karst surface forms such as karren, dolines, and poljes. Gilli divides the factors affecting karst landforms into five categories: structural, topographic, pedological (soil types), meteorological, and biological. The more common classification of these features as given by Bögli (1980) and Ford and Williams (2007) receives limited coverage. In Chapter 6, karst landscapes in various climates are considered. Caves and other underground karst features are divided between two chapters, 7 and 10. In addition, Chapters 11, 12, and 14 about aquifers could have been combined into a single chapter. In view of the growing interest in coastal karst, Gilli has covered this topic in a separate Chapter 14 on coastal and submarine karst aquifers. Chapter 13 on water use, management, and risks in karst areas, is very important. Given the fragility of karst areas, improper use of land and water resources has caused many problems in karst regions. In Chapter 15, land management in karst is the main issue. Many examples are given of land subsidence and dam failure in various karst areas of the world, and methods of detecting them are described, such as the use of radar tracking. This book gives greater attention to tourism in karst and caves than do other general books on karst. In recent years, tourism in karst areas has been an increasing consideration, and its importance is emphasized in Chapter 16. This chapter is limited only to caves, although surface karst forms are also important for tourism. Many tourist caves in the world are described, but there are no photos of dramatic surface karst such as tower karst in southeastern Asia. Damage to caves by tourists and amateur cavers is mentioned only briefly. In Chapter 17, mineral resources in karst are described. Traditional resources such as bauxite and guano are covered, but the greatest attention is given to hydrocarbon resources in karst. A minor omission is travertine, which is widely used as building stone. Chapters 18 and 19 concern thermal springs and paleokarst respectively. They are only 2 and 21 pages long, and
Geodinamica Acta, Jun 1, 2010
Comptes Rendus Geoscience, Sep 1, 2006
A new method of interpretation of the Q–C hysteresis (discharge–salinity) during high water is pr... more A new method of interpretation of the Q–C hysteresis (discharge–salinity) during high water is proposed using the data recorded on coastal brackish karstic springs with salinity inversely proportional to the discharge. The method, based on the Qmer–CT (seawater discharge–salinity) hysteresis, identifies the effect of the hydrodynamic changes on the flow and transport. Three phenomena are characterized: the emptying of the
Advances in karst science, Nov 1, 2020
Advances in karst science, Nov 1, 2020
Cave and karst systems of the world, Jun 21, 2020
Cave and karst systems of the world, Jun 21, 2020
The survey of submarine cave is a challenge due to the short time divers have for doing it. Rebre... more The survey of submarine cave is a challenge due to the short time divers have for doing it. Rebreathers, dive computers and specific automatic survey computers are now used. To enhance the precision underground beacons can be installed and detected from the surface.