Results 21 to 30 of about 50 (37)
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Doklady Earth Sciences, 2023
The article reports new data on previously undescribed lamellar-like (linearly oriented) structures in clinopyroxenes from mantle xenoliths of garnet pyroxenites (Obnazhennaya pipe, Northern Siberia). The origin and mineral diversity of lamellar structures in xenoliths from the Obnazhennaya pipe are supposed to be related to a breakdown of solid ...
N. M. Korolev +6 more
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The article reports new data on previously undescribed lamellar-like (linearly oriented) structures in clinopyroxenes from mantle xenoliths of garnet pyroxenites (Obnazhennaya pipe, Northern Siberia). The origin and mineral diversity of lamellar structures in xenoliths from the Obnazhennaya pipe are supposed to be related to a breakdown of solid ...
N. M. Korolev +6 more
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Доклады Российской академии наук. Науки о Земле, 2023
Upper Muna kimberlite field) showed that the crust at different levels is composed of pyroxene, garnet-pyroxene crystalline schists and garnet-pyroxene gneisses. Exsolution textures in pyroxenes and amphiboles, granat rims around grains of ilmenite and pyroxenes indicate that the mineral associations of crystalline schists were formed during cooling at
V. S. Shatsky +5 more
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Upper Muna kimberlite field) showed that the crust at different levels is composed of pyroxene, garnet-pyroxene crystalline schists and garnet-pyroxene gneisses. Exsolution textures in pyroxenes and amphiboles, granat rims around grains of ilmenite and pyroxenes indicate that the mineral associations of crystalline schists were formed during cooling at
V. S. Shatsky +5 more
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Doklady Earth Sciences, 2020
The data available indicate the complex evolution of deformed peridotites of mantle xenoliths, the P–T parameters of which indicate that they are fragments of the metasomatized lower part of the cratonic lithosphere. The zoning established in garnets from xenoliths in kimberlite pipes is interpreted as a result of metasomatism that occurred shortly ...
V. S. Shatsky +3 more
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The data available indicate the complex evolution of deformed peridotites of mantle xenoliths, the P–T parameters of which indicate that they are fragments of the metasomatized lower part of the cratonic lithosphere. The zoning established in garnets from xenoliths in kimberlite pipes is interpreted as a result of metasomatism that occurred shortly ...
V. S. Shatsky +3 more
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2020
<p>Water plays a key role in evolution and dynamic of the Earth. It can change physical and chemical properties of mantle minerals, or the part of the mantle, for instance, the effect on mineral deformation and its impact on mantle rheology (Miller et al., 1987).
Maria Kolesnichenko +2 more
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<p>Water plays a key role in evolution and dynamic of the Earth. It can change physical and chemical properties of mantle minerals, or the part of the mantle, for instance, the effect on mineral deformation and its impact on mantle rheology (Miller et al., 1987).
Maria Kolesnichenko +2 more
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Russian Geology and Geophysics, 1994
Areal and profile DSS data help in studying distribution of regional (smoothed) and local anomalies of mantle topography, intracrustal boundary and boundary velocity along the Moho discontinuity. A distinct linear zoning of local anomalies is established to specify construction of separate blocks and structural stories.
V. D. Suvorov +2 more
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Areal and profile DSS data help in studying distribution of regional (smoothed) and local anomalies of mantle topography, intracrustal boundary and boundary velocity along the Moho discontinuity. A distinct linear zoning of local anomalies is established to specify construction of separate blocks and structural stories.
V. D. Suvorov +2 more
openaire +1 more source