Origin of magnetic anomalies in the large Ebersbrunn diatreme, W Saxony, Germany

Schmidt, A.; Nowaczyk, Norbert R; Kämpf, Horst; Schüller, Irka; Flechsig, Christina; Jahr, T.

doi:10.1007/s00445-013-0766-6

Cited by 14 publications

(10 citation statements)

References 44 publications

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“…To test the feasibility of using Kr it for Earth surface science applications, we analysed a suite of zircon samples from near-surface sediment and bedrock with a wide range of anticipated exposure histories. The sediment samples are zircon megacrysts from kimberlitic, carbonatitic and metamorphic source rocks from locations in Australia (Mud Tank carbonatite; Crohn and Moore, 1984;Currie et al, 1992), Tanzania (Singida kimberlite field and Ubendian-Usagaran metamorphic belt; Mannard, 1962;Kabete et al, 2012) and Germany (Ebersbrunn diatreme, Vogtland; Schmidt et al, 2013;Modalek et al, 2009). The bedrock samples are from glacially scoured surfaces and a block from the Grimsel Pass, Switzerland (Wirsig et al, 2016).…”

Section: Test Of Feasibilitymentioning

confidence: 99%

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In situ-produced cosmogenic krypton in zircon and its potential for Earth surface applications

2022

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Abstract. Analysis of cosmogenic nuclides produced in surface rocks and sediments is a valuable tool for assessing the rates of processes and the timing of events that shaped the Earth surface. The various nuclides that are used have specific advantages and limitations that depend on the time range over which they are useful, the type of material they are produced in and not least the feasibility of the analytical effort. Anticipating novel applications in Earth surface sciences, we develop in situ-produced terrestrial cosmogenic krypton (Krit) as a new tool, the motivation being the availability of six stable and one radioactive isotope (81Kr, half-life 229 kyr) and of an extremely weathering-resistant target mineral (zircon). We provide proof of principle that terrestrial Krit can be quantified and used to unravel Earth surface processes.

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Section: Test Of Feasibilitymentioning

confidence: 99%

“…These zircons stem from a kimberlitic diatreme near Ebersbrunn, Vogtland, Germany (Schmidt et al, 2013;Modalek , 2009). Ages of zircons from this location were determined as 71.1 ± 0.8 Myr (U-Pb; Table 2), which we take as the intrusion age.…”

Section: Rbm Goel and Vogtmentioning

confidence: 99%

In situ-produced cosmogenic krypton in zircon and its potential for Earth surface applications

2022

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“…The sediment samples are zircon megacrysts from kimberlitic, carbonatitic and metamorphic source rocks from locations in Australia (Mud Tank carbonatite; (Crohn and Moore, 1984;Currie et al, 1992)), Tanzania (Singida kimberlite field and Ubendian-Usagaran metamorphic belt (Mannard, 1962;Kabete et al, 2012)) and Germany (Ebersbrunn diatreme, Vogtland (Schmidt et al, 2013;Modalek et al, 2009)).…”

Section: Test Of Feasibilitymentioning

confidence: 99%

“…These zircons stem from a kimberlitic diatreme near Ebersbrunn, Vogtland, Germany (Schmidt et al, 2013;Modalek et al, 2009). Ages of zircons from this location were determined as 71.1±0.8 Myr (U-Pb; Table 2), which we take as the intrusion age.…”

Section: Rbm Goel and Vogtmentioning

confidence: 99%

In situ produced cosmogenic krypton in zircon and its potential for Earth surface applications

Dunai

Binnie

Gerdes

2021

Preprint

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Abstract. Analysis of cosmogenic nuclides produced in surface rocks and sediments is a valuable tool for assessing rates of processes and the timing of events that shaped the Earth surface. The various nuclides that are used have specific advantages and limitations that depend on the time-range over which they are useful, the type of material they are produced in, and not least the feasibility of the analytical effort. Anticipating novel applications in Earth surface sciences, we develop in-situ produced terrestrial cosmogenic krypton (Krit) as a new tool; the motivation being the availability of six stable and one radioactive isotope (81Kr, half-life 229 kyr) and of an extremely weathering-resistant target mineral (zircon). We provide proof of principle that terrestrial Krit can be quantified and used to unravel Earth surface processes.

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“…The research and imaging of Tertiary and Quaternary maar volcanoes is often successfully carried out using various geophysical methods, mainly gravimetry and magnetics and, to a lesser extent, geoelectrical and seismic methods (e.g., Cassidy et al 2007;Mrlina et al 2009;Matthes et al 2010;Skácelová et al 2010;Gebhardt et al 2011;Bolós et al 2012;Schmidt et al 2013). The gravimetry mostly relies on a density contrast between the diatreme and a country rock, as the material within the diatreme ("fluffed up" during eruption) has lower bulk density than the surrounding rocks.…”

Section: Introductionmentioning

confidence: 99%

Problems and challenges in detection of pre-Mesozoic maar volcanoes: example from the Principálek Volcano in the Permian Krkonoše Piedmont Basin

Valenta¹,

Rapprich²,

Stárková³

et al. 2014

J. Geosci.

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The Permian pyroclastic deposits on the Principálek Hill SW of Vrchlabí (Czech Republic) were investigated by means of geological mapping and geophysics. The pyroclastic rocks are exposed in several small coherent outcrops, yet many interpretations are based on debris. The preserved textures enable reconstruction of eruptive styles. The volcanism started with phreatomagmatic eruptions documented by the fine-grained tuff with accretionary lapilli at the base. Subsequently, the activity changed to phreato-Strombolian/Surtseyan producing lapilli-tuffs and lapillistones. These events were followed by a Strombolian phase as evidenced by ill-sorted scoriaceous tuff-breccias with volcanic bombs. The uppermost unit consists of welded lava agglutinates and basaltic lavas suggesting a Hawaiian style of eruption. One of the basaltic feeder necks is exposed in a small abandoned quarry. Geophysical surveys were carried out over the extent of pyroclastic deposits. These included gravimetry, magnetometry, and DC resistivity tomography. The magnetic data indicate the occurrence of basaltic dykes in the central part of the pyroclastic deposits. The DC tomography confirms the presence of dykes, enables estimation of the pyroclastic deposits thickness, and provides evidence for the size and position of the maar-diatreme. Gravity data yield an insignificant low associated with the diatreme, which is likely a product of low rock-density contrast between the diatreme and country rocks. We argue that this is due to short time gap between sedimentation and volcanic activity and also related to conjoint burial and diagenetic history of the diatreme and the surrounding country rocks.

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Origin of magnetic anomalies in the large Ebersbrunn diatreme, W Saxony, Germany

Cited by 14 publications

References 44 publications

In situ-produced cosmogenic krypton in zircon and its potential for Earth surface applications

In situ-produced cosmogenic krypton in zircon and its potential for Earth surface applications

In situ produced cosmogenic krypton in zircon and its potential for Earth surface applications

Problems and challenges in detection of pre-Mesozoic maar volcanoes: example from the Principálek Volcano in the Permian Krkonoše Piedmont Basin

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