Boron isotopes as a proxy of weathering mechanisms and balance in soil minerals
type: Dataset
description: The objective of this thesis is to estimate the ability of boron and its isotopes to evaluate mineral weathering budgets and mechanisms in soils. In this goal, 3 different approaches were conducted:1) an experimental approach during which a test-mineral (biotite) undergoes the action of different weathering agents, representative of those found in soils.2) an in-situ approach in an acid soil profile led on different minerals (biotite, muscovite, K-feldspar and albite) handpicked at various depths and weathering state (Breuil-Chenue forest experimental site, France).The objective of this study is to determine the sensitivity of boron to soil formation processes.3) an second in-situ approach conducted on the same study site but this time on sub-surface horizons (horizon A and Al-oxi-hydroxides accumulation horizon), which aim is to evaluate the sensitivity of boron and its isotopes to mechanisms in close vicinity to vegetation (seasonal variations, vicinity of the roots). B and its isotopes able, thanks to its high reactivity during weathering mechanisms in comparison to major elements that constitute the crystallographic network (observed in experimental as well as in in-situ approaches), to trace with a great sensitivity primary minerals dissolution or transformation mechanisms, and opens new insights for the comprehension of soils.
landing page: https://theses.hal.science/tel-00873615
identifier: NNT: 2012STRAH008
keyword: alteration
keyword: bore
keyword: boron
keyword: breuil-chenue-forest
keyword: foret-de-breuil-chenue
keyword: infoeu-reposemanticsdoctoralthesis
keyword: isotopes
keyword: minerals
keyword: mineraux
keyword: rhizosphere
keyword: saison
keyword: sdustugcsciences-of-the-universe-physicsearth-sciencesgeochemistry
keyword: soils
keyword: sol
keyword: theses
issued: 2026-05-09T08:41:06.744804
modified: 2026-05-09T08:41:06.744809
language: fr
contact point: Organization
  fn: CCSD

test_moissonnage_selune
type: Agent

Boron isotopes as a proxy of weathering mechanisms and balance in soil minerals
type: Distribution
format: HTML
access URL: https://theses.hal.science/tel-00873615
issued: 2026-05-09T08:41:06.746944
modified: 2026-05-09T08:41:06.725186