Friable rock embedding in methyl methacrylate for thin‐sectioning in geological preparations

Palle, Sabine; Chappard, Daniel; Alexandre, Christian; Orsini, Jean-Baptiste

doi:10.1111/j.1365-2818.1986.tb02715.x

Cited by 3 publications

(1 citation statement)

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“…For example, Carboax (Renberg, 1981), Vestopal H (Altmuller, 1962;Ashley, 1973), methyl methacrilate (Palle et al, 1985;Murphy, 1986;Pusch, 1999), Crystic (Conway 1982), and LR hard white resin (Ferrow and Roots, 1989) have all been employed. The standard resins most used for sediment impregnation are Epoxy products (Martin et al, 1979;Crevello et al, 1981;Jim, 1985;Clark, 1988;Lamoureux, 1994;Francus, 1998;Kemp et al, 2001).…”

Section: Polymersmentioning

confidence: 99%

Impregnation method for detecting annual laminations in sediment cores: An overview

Boës

Fagel

2005

Sedimentary Geology

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Annually laminated sediments can provide an absolute time scale (by varve counting) and a high-resolution palaeoclimate information (from varve thickness). Both types of information may be directly measured from sediment core surfaces. In this paper, we stress that varve counting and varve thickness measurements derived from fresh core surfaces could not systematically reveal the internal sedimentary structure, even if assisted by high resolution image analysis. We present an example of a homogeneous sediment core for which the varves were only observable after core impregnation and polishing steps. Because the impregnation methods are not yet standardized, the aim of this paper is to give an updated review of the methodology. In this review, we present the major critical points during impregnation steps. In particular, we focus on all of the post-treatment sediment disturbances that can alter the laminated micro-structure and, consequently, varve measurements. Finally, we propose a modified impregnation protocol, especially adapted for tracking varved intervals in long cores.

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Section: Polymersmentioning

confidence: 99%

Impregnation method for detecting annual laminations in sediment cores: An overview

Boës

Fagel

2005

Sedimentary Geology

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Dehydration and stabilization of unconsolidated laminated lake sediments using gypsum for the preparation of thin sections

et al. 2020

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An improved Lamoureux method for subsampling of unconsolidated laminated sediment is described. Here, we describe a new methodological approach that changes the Lamoureux method in four steps of which the most important change concerns dehydration and stabilization. In this step, we adopted gypsum embedding of the subsample, which took about 1 h to harden and keeps the sediment partially moist. After drying of the gypsum, the subsamples are impregnated with Epoxy 2000 resin under room temperature. This method requires commonly available equipment and can be implemented cost-effectively within 3–4 days.

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Soil Micromorphology: Concepts, Techniques, and Applications

Vepraskas

Wilson

2015

Methods of Soil Analysis Part 5-Mineralogical Methods

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Friable rock embedding in methyl methacrylate for thin‐sectioning in geological preparations

Abstract: and 2Laboratoire de Ge'ologie-Pe'trologie, Unite' Associe'e 726, 23 Rue du Docteur Michelon, 42023 Saint Etienne Cedex, France KEY W O R D S . Methyl methacrylate, friable rocks, geology, thin-slabs, embedding procedure.

Cited by 3 publications

References 4 publications

Impregnation method for detecting annual laminations in sediment cores: An overview

Impregnation method for detecting annual laminations in sediment cores: An overview

Dehydration and stabilization of unconsolidated laminated lake sediments using gypsum for the preparation of thin sections

Soil Micromorphology: Concepts, Techniques, and Applications

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