Some Trends in Shape Production for Artificial Quartz Crystals

Kleshchev, G. V.; Bryzgalov, A. N.; Chernyi, L. N.; Kuznetsov, A. F.; Nikitichev, P. I.

doi:10.1007/978-1-4613-4256-4_11

Cited by 1 publication

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“…We also note some crystals with prismatic growth (Figures 1A, 3B). However, it was found that most of the quartz crystals formed exhibit a pyramidal growth mode (i.e., r face) and that the m (prismatic) face grows only passively 19 . Nevertheless, in our case, taken from nature, in some cases we observe growth along the m face.…”

Section: Fluid Ow Within the Limagne Basinmentioning

confidence: 99%

Paleofluid flow: answers in the quartz.

Fréville

Sizaret

2021

Preprint

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The search for carbon-free energy sources is at the heart of our concerns. It has become necessary to develop our capacities to harness the active energy flows of our environment while trying to have the lowest possible impact. Among these flows, one of the most stable is that linked to terrestrial thermal anomalies. Geothermal energy is an attractive option due to its regularity and the development of knowledge is encouraged, in France, by the national research funding agency. Geothermal systems are mainly associated with active hydrothermal circulations, fluids can be considered as a source of heat but also of metals. However, fluid circulation within active hydrothermal fields occurs at considerable depths and cannot be observed directly. In this study we propose a method for reconstructing the paleo-flow velocities recorded by quartz. The relative thickness of quartz growth bands is used to deduce the sense and velocity of the paleofluid flow. This contribution highlights the paleofluid flows velocities and the recharge/discharge area in the Limagne Basin geothermal province, which is currently under investigation. Finally, this study provides a tool to be used to study fossil hydrothermal systems containing quartz veins with comb textures.

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Section: Fluid Ow Within the Limagne Basinmentioning

confidence: 99%