Nikolay Larin - Academia.edu (original) (raw)

Papers by Nikolay Larin

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Progress in Earth and Planetary Science, 2015

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called "Carolina bays." This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Natural Molecular Hydrogen Seepage Associated with Surficial, Rounded Depressions on the European Craton in Russia

Natural Resources Research, 2014

ABSTRACT In the Russian part of the European craton, several thousands of subcircular structures ... more ABSTRACT In the Russian part of the European craton, several thousands of subcircular structures ranging in size from a hundred meters to several kilometers in diameter have been identified throughout the region extending from Moscow to Kazakhstan. Generally, these structures correspond to minor morphological depressions. In cultivated areas, the periphery of these structures is often outlined by a ring of soil bleaching associated with growth anomalies of vegetation. The cores of the structures commonly correspond to marshes, sometimes with lakes. Subsoil gas composition of these structures was studied. For this purpose, portable gas detectors were used, and the results obtained were confirmed by gas chromatography analysis. Inside and around these structures, the concentration of molecular hydrogen in soil was much greater inside than outside, up to 1.25% at 1.2 m in soils. The hydrogen is associated with a small quantity of methane. We estimated a daily hydrogen flow seeping out at the surface is between 21,000 and 27,000 m3 in one of these structures.

Research paper thumbnail of Additional file 1: of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Supplementary information for article .

Research paper thumbnail of Chemical differentiation of planets: a core issue

arXiv: Earth and Planetary Astrophysics, 2012

Prevalent theories of the Solar System formation minimize the role of matter ionization and magne... more Prevalent theories of the Solar System formation minimize the role of matter ionization and magnetic field in the Solar nebula. Instead, we propose that a magnetically driven chemical gradient at the scale of the Solar nebula has imprinted chemical differentiation of planets in the further accretion stages. For a given planet, we theoretically relate element abundances relative to Sun to first ionization potentials and distance to Sun. This simple model is successfully tested against available chemical composition data from CI chondrites, and surfaces of Mars, Earth, Moon, Venus and Mercury. We show moreover that deviations from the proposed law for a given planet correspond to later surface segregation of elements driven both by gravity and chemical reactions. We thus provide a new picture for the distribution of elements in a Stellar System and inside planets, with strong consequences. Particularly, a 18 wt % initial H content is predicted for bulk Earth.

Research paper thumbnail of Crystallisation condition of the Quaternary basanites of volcanic centre Black Rock, monogenetic field Lunar Crater

Research paper thumbnail of Diffused flow of molecular hydrogen through the Western Hajar mountains, Northern Oman

Arabian Journal of Geosciences

Research paper thumbnail of Chemical differentiation of planets: a core issue

Prevalent theories of the Solar System formation minimize the role of matter ionization and magne... more Prevalent theories of the Solar System formation minimize the role of matter ionization and magnetic field in the Solar nebula. Here we propose that a magnetically driven chemical gradient at the scale of the Solar nebula predates radial chemical differentiation of each planet. We report an observed correlation between the first ionization potentials of the elements and their abundances on Earth surface relative to Sun, interpreted as a Boltzmann distribution depending on the distance from the Sun. This predictive model for distribution of the elements in the Solar System is successfully tested for relative abundance data from CI chondrites, Moon, Mars and Venus. Deviations from the proposed law for a given planet correspond to surface segregation of elements following periodic trends. Bulk Earth would have included up to 18%wt H, with definite consequences on theories about inner Earth composition. From this model, a new picture of the Solar System emerges.

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Progress in Earth and Planetary Science, 2015

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called " Carolina bays. " This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called " Carolina bays. " This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Natural Molecular Hydrogen Seepage Associated with Surficial, Rounded Depressions on the European Craton in Russia

In the Russian part of the European craton, several thousands of subcircular structures ranging i... more In the Russian part of the European craton, several thousands of subcircular structures ranging in size from a hundred meters to several kilometers in diameter have been identified throughout the region extending from Moscow to Kazakhstan. Generally, these structures correspond to minor morphological depressions. In cultivated areas, the periphery of these structures is often outlined by a ring of soil bleaching associated with growth anomalies of vegetation. The cores of the structures commonly correspond to marshes, sometimes with lakes. Subsoil gas composition of these structures was studied. For this purpose, portable gas detectors were used, and the results obtained were confirmed by gas chromatography analysis. Inside and around these structures, the concentration of molecular hydrogen in soil was much greater inside than outside, up to 1.25% at 1.2 m in soils. The hydrogen is associated with a small quantity of methane. We estimated a daily hydrogen flow seeping out at the surface is between 21,000 and 27,000 m 3 in one of these structures.

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Progress in Earth and Planetary Science, 2015

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called "Carolina bays." This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Natural Molecular Hydrogen Seepage Associated with Surficial, Rounded Depressions on the European Craton in Russia

Natural Resources Research, 2014

ABSTRACT In the Russian part of the European craton, several thousands of subcircular structures ... more ABSTRACT In the Russian part of the European craton, several thousands of subcircular structures ranging in size from a hundred meters to several kilometers in diameter have been identified throughout the region extending from Moscow to Kazakhstan. Generally, these structures correspond to minor morphological depressions. In cultivated areas, the periphery of these structures is often outlined by a ring of soil bleaching associated with growth anomalies of vegetation. The cores of the structures commonly correspond to marshes, sometimes with lakes. Subsoil gas composition of these structures was studied. For this purpose, portable gas detectors were used, and the results obtained were confirmed by gas chromatography analysis. Inside and around these structures, the concentration of molecular hydrogen in soil was much greater inside than outside, up to 1.25% at 1.2 m in soils. The hydrogen is associated with a small quantity of methane. We estimated a daily hydrogen flow seeping out at the surface is between 21,000 and 27,000 m3 in one of these structures.

Research paper thumbnail of Additional file 1: of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Supplementary information for article .

Research paper thumbnail of Chemical differentiation of planets: a core issue

arXiv: Earth and Planetary Astrophysics, 2012

Prevalent theories of the Solar System formation minimize the role of matter ionization and magne... more Prevalent theories of the Solar System formation minimize the role of matter ionization and magnetic field in the Solar nebula. Instead, we propose that a magnetically driven chemical gradient at the scale of the Solar nebula has imprinted chemical differentiation of planets in the further accretion stages. For a given planet, we theoretically relate element abundances relative to Sun to first ionization potentials and distance to Sun. This simple model is successfully tested against available chemical composition data from CI chondrites, and surfaces of Mars, Earth, Moon, Venus and Mercury. We show moreover that deviations from the proposed law for a given planet correspond to later surface segregation of elements driven both by gravity and chemical reactions. We thus provide a new picture for the distribution of elements in a Stellar System and inside planets, with strong consequences. Particularly, a 18 wt % initial H content is predicted for bulk Earth.

Research paper thumbnail of Crystallisation condition of the Quaternary basanites of volcanic centre Black Rock, monogenetic field Lunar Crater

Research paper thumbnail of Diffused flow of molecular hydrogen through the Western Hajar mountains, Northern Oman

Arabian Journal of Geosciences

Research paper thumbnail of Chemical differentiation of planets: a core issue

Prevalent theories of the Solar System formation minimize the role of matter ionization and magne... more Prevalent theories of the Solar System formation minimize the role of matter ionization and magnetic field in the Solar nebula. Here we propose that a magnetically driven chemical gradient at the scale of the Solar nebula predates radial chemical differentiation of each planet. We report an observed correlation between the first ionization potentials of the elements and their abundances on Earth surface relative to Sun, interpreted as a Boltzmann distribution depending on the distance from the Sun. This predictive model for distribution of the elements in the Solar System is successfully tested for relative abundance data from CI chondrites, Moon, Mars and Venus. Deviations from the proposed law for a given planet correspond to surface segregation of elements following periodic trends. Bulk Earth would have included up to 18%wt H, with definite consequences on theories about inner Earth composition. From this model, a new picture of the Solar System emerges.

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA)

Progress in Earth and Planetary Science, 2015

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called " Carolina bays. " This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Evidence for natural molecular hydrogen seepage associated with Carolina bays (surficial, ovoid depressions on the Atlantic Coastal Plain, Province of the USA

A study of soil gases was made in North Carolina (USA) in and around morphological depressions ca... more A study of soil gases was made in North Carolina (USA) in and around morphological depressions called " Carolina bays. " This type of depression is observed over the Atlantic coastal plains of the USA, but their origin remains debated. Significant concentrations of molecular hydrogen (H 2) were detected, notably around the bays. These measurements suggest that Carolina bays are the surficial expression of fluid flow pathways for hydrogen gas moving from depth to the surface. The potential mechanisms of H 2 production and transport and the geological controls on the fluid migration pathways are discussed, with reference to the hypothesis that Carolina bays are the result of local collapses caused by the alteration of rock along the deep pathways of H 2 migrating towards the surface. The present H 2 seepages are comparable to those in similar structures previously observed in the East European craton.

Research paper thumbnail of Natural Molecular Hydrogen Seepage Associated with Surficial, Rounded Depressions on the European Craton in Russia

In the Russian part of the European craton, several thousands of subcircular structures ranging i... more In the Russian part of the European craton, several thousands of subcircular structures ranging in size from a hundred meters to several kilometers in diameter have been identified throughout the region extending from Moscow to Kazakhstan. Generally, these structures correspond to minor morphological depressions. In cultivated areas, the periphery of these structures is often outlined by a ring of soil bleaching associated with growth anomalies of vegetation. The cores of the structures commonly correspond to marshes, sometimes with lakes. Subsoil gas composition of these structures was studied. For this purpose, portable gas detectors were used, and the results obtained were confirmed by gas chromatography analysis. Inside and around these structures, the concentration of molecular hydrogen in soil was much greater inside than outside, up to 1.25% at 1.2 m in soils. The hydrogen is associated with a small quantity of methane. We estimated a daily hydrogen flow seeping out at the surface is between 21,000 and 27,000 m 3 in one of these structures.