The recovery and isotopic measurement of water from fluid inclusions in speleothems

Dennis, Paul F.; Rowe, Peter; Atkinson, T. C.

doi:10.1016/s0016-7037(00)00576-7

Cited by 93 publications

(74 citation statements)

References 35 publications

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“…D/H analysis of such inclusion water represents the isotopic composition of the paleoprecipitation at the cave site. [32][33][34] The average dD value (Fig. 1(c)) of segments I and II/1 is À71% (n ¼ 6) and for section III is À67% (n ¼ 5), whereas section II/2 contains H 2 O with a dD value of À87% (n ¼ 3).…”

Section: Resultsmentioning

confidence: 99%

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Siklósy

Demény

Vennemann

et al. 2009

Rapid Comm Mass Spectrometry

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Stable isotope analyses of speleothems (carbonate deposits formed in caves) have been widely used to reconstruct paleoenvironmental conditions. Recent improvements in geochemical techniques have enabled us to analyze climate‐influenced deposits at high temporal resolution so that hitherto unrecognized environmental conditions may be identified. Stable H, C and O isotope analyses on carbonate and inclusion water have been combined with multicollector inductively coupled plasma mass spectrometry (MC‐ICP‐MS) age dating and laser‐ablation ICP‐MS trace element analyses on a stalagmite from southern Hungary. The study reveals significant changes in chemical and isotopic compositions of the speleothem between approx. 3800 and 3500 years BP (‘Before Present’) indicating coupled changes in the temperature and precipitation regime under which the speleothem formed. Stable isotopic and trace element correlations within this time period correlate with similar studies of stalagmites of comparable age from the Alpine‐Mediterranean region. Our studies suggest that traces of deposition of volcanic dust, possibly related to the Thera eruption of Santorini (Greece) ca. 1650 BC (∼3650 BP), and environmental changes can be detected at a distance of several thousand kilometers. Copyright © 2009 John Wiley & Sons, Ltd.

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Section: Resultsmentioning

confidence: 99%

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Siklósy

Demény

Vennemann

et al. 2009

Rapid Comm Mass Spectrometry

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“…An induction coil was used by Dennis et al (2001) [6] to lift and drop a piston, hanging on a spring just clear of the sample in an evacuated tube. In contrast, in the MTSN crusher the electromagnet operated in a dynamic impulse mode.…”

Section: Electromagnetic Crushingmentioning

confidence: 99%

“…Adsorption of even minute amounts of this water may lead to significant distortion of measured δD and δ 18 O values. Adsorption was the most likely factor for largely unsuccessful early attempts at using crushing to extract fluid-inclusion water for stable isotope analyses [6].…”

Section: Lfu -Crushing Cell For Polar Volatilesmentioning

confidence: 99%

“…BTO X-145 septa (Thermo Fisher Scientific) gave the best results in terms of longevity, withstanding several hundreds of injections. Dennis, et al (2001) [6] demonstrated that the adsorption of fluid inclusion water on the freshly crushed calcite lead to significant isotopic fractionation, and recommended removing water at elevated temperatures (ca. 150 • C).…”

Section: Lfu -Crushing Cell For Polar Volatilesmentioning

confidence: 99%

“…The two methods most frequently used for this purpose are thermal decrepitation and crushing; both of which have specific advantages and drawbacks which have been thoroughly discussed elsewhere [1][2][3][4]. In many applications, the method of heated crushing was found to give optimal results [5,6]. …”

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Design of two crushing devices for release of the fluid inclusion volatiles

Dublyansky

2012

Open Geosciences

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Two crushing cells have been described for the release of volatiles from fluid inclusions in minerals in vacuum, static gas, and gas-flow applications. To minimize the adsorption of released volatiles on the freshly created mineral surfaces, both devices employed heated crushing. In the MTSN (Museo Tridentine di Scienze Naturali) crusher, samples were disintegrated by a piston driven by an induction coil. For efficient crushing, the electromagnet operated in dynamic impulse mode. In the LFU (Leopold-Franzens-Universität) crusher, the sample was disintegrated through the combined action of compression (manually operated hydraulic ram) and attrition.Crushers are able to be used in off-line and on-line modes, in gas chromatographic and mass spectrometric analyses. The chemical and isotopic composition of volatiles trapped in fluid inclusions is important information sought in a wide variety of fluid inclusion studies. Gas chromatography (GS) and isotopic-ratio mass spectrometry (IRMS) are the two methodologies most frequently used for analysis of fluid inclusion volatiles. For analysis, volatiles need to be quantitatively released from the sample mineral. The two methods most frequently used for this purpose are thermal decrepitation and crushing; both of which have specific advantages and drawbacks which have been thoroughly discussed elsewhere [1][2][3][4]. In many applications, the method of heated crushing was found to give optimal results [5,6]. KeywordsAlthough the task of releasing fluid inclusion contents by mechanical destruction of samples appears trivial, a multi- * E-mail: Juri. In this short communication, two designs of crushing stages are presented, which have been tested, used, and proved successful in a number of research projects over the last 5 years. The designs are complementary and are able to be adopted for different applications. MTSN -crushing cell for non-polar volatilesThe MTSN crushing cell was designed and tested while the author worked at the Museo Tridentino di Scienze Naturali (Trento, Italy). The design is therefore designated MTSN. Although recent advances in the applica-

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Geochemical Sediments and Landscapes

Nash¹,

McLaren²

2007

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The recovery and isotopic measurement of water from fluid inclusions in speleothems

Cited by 93 publications

References 35 publications

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Bronze Age volcanic event recorded in stalagmites by combined isotope and trace element studies

Design of two crushing devices for release of the fluid inclusion volatiles

Geochemical Sediments and Landscapes

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