Search Results - "Hauff, Folkmar"
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How and when plume zonation appeared during the 132 Myr evolution of the Tristan Hotspot
Published in Nature communications (27-07-2015)“…Increasingly, spatial geochemical zonation, present as geographically distinct, subparallel trends, is observed along hotspot tracks, such as Hawaii and the…”
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2
Subduction initiation terranes exposed at the front of a 2 Ma volcanically-active subduction zone
Published in Earth and planetary science letters (15-02-2019)“…•The youngest known (2 Ma) volcanically-active subduction system.•Exceptionally diverse range of magma compositions coeval and spatially juxtaposed.•Mixing of…”
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3
Second-stage Caribbean Large Igneous Province volcanism: The depleted Icing on the enriched Cake
Published in Chemical geology (30-03-2019)“…A long-standing question has been whether the Lower Nicaraguan Rise in the western Caribbean Sea represents thinned continental crust or is part of the…”
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4
Breaking Up Is Hard to Do: Magmatism During Oceanic Arc Breakup, Subduction Reversal, and Cessation
Published in Geochemistry, geophysics, geosystems : G3 (01-12-2022)“…The formerly continuous Vitiaz Arc broke into its Vanuatu and Fijian portions during a reversal of subduction polarity in the Miocene. Basaltic volcanism in…”
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5
Boninite-like intraplate magmas from Manihiki Plateau require ultra-depleted and enriched source components
Published in Nature communications (09-02-2017)“…The Ontong Java and Manihiki oceanic plateaus are believed to have formed through high-degree melting of a mantle plume head. Boninite-like, low-Ti basement…”
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A stable (Li, O) and radiogenic (Sr, Nd) isotope perspective on metasomatic processes in a subducting slab
Published in Chemical geology (24-02-2011)“…Two distinct types of eclogites from the Raspas Complex (Ecuador), which can be distinguished based on petrography and trace element geochemistry, were…”
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Evidence for compositionally distinct upper mantle plumelets since the early history of the Tristan-Gough hotspot
Published in Nature communications (03-07-2023)“…Recent studies indicate that mantle plumes, which transfer material and heat from the earth’s interior to its surface, represent multifaceted upwellings. The…”
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Global distribution of the HIMU end member: Formation through Archean plume-lid tectonics
Published in Earth-science reviews (01-07-2018)“…Oceanic basalts reflect the heterogeneities in the earth's mantle, which can be explained by five mantle end members. The HIMU end member, characterized by…”
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The origin of magmas and metals at the submarine Brothers Volcano, Kermadec Arc, New Zealand
Published in Economic geology and the bulletin of the Society of Economic Geologists (01-11-2023)“…International Ocean Discovery Program (IODP) Expedition 376 cored the submarine Brothers volcano of the Kermadec arc to provide insights into the third…”
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Constraints on the magmatic evolution of the oceanic crust from plagiogranite intrusions in the Oman ophiolite
Published in Contributions to mineralogy and petrology (01-05-2016)“…We present major and trace element as well as Sr, Nd, and Hf isotope data on a suite of 87 plutonic rock samples from 27 felsic crustal intrusions in seven…”
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Age and geochemistry of volcanic rocks from the Hikurangi and Manihiki oceanic Plateaus
Published in Geochimica et cosmochimica acta (15-12-2010)“…Here we present the first radiometric age data and a comprehensive geochemical data set (including major and trace element and Sr–Nd–Pb–Hf isotope ratios) for…”
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On- and off-axis chemical heterogeneities along the South Atlantic Mid-Ocean-Ridge (5–11°S): Shallow or deep recycling of ocean crust and/or intraplate volcanism?
Published in Earth and planetary science letters (01-06-2011)“…The Mid-Atlantic Ridge between the Ascension and Bode Verde Fracture Zones exhibits anomalous crustal thickness and geochemical compositions, which could…”
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13
Papanin Ridge and Ojin Rise Seamounts (Northwest Pacific): Dual Hotspot Tracks Formed by the Shatsky Plume
Published in Geochemistry, geophysics, geosystems : G3 (01-09-2021)“…Abstract Although previous findings support an origin of the Shatsky Rise igneous plateau (Northwest Pacific) through interaction of a mantle plume with a…”
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14
Arc-parallel flow in the mantle wedge beneath Costa Rica and Nicaragua
Published in Nature (London) (28-02-2008)“…Resolving flow geometry in the mantle wedge is central to understanding the thermal and chemical structure of subduction zones, subducting plate dehydration,…”
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15
Plume–subduction interaction in southern Central America: Mantle upwelling and slab melting
Published in Lithos (01-01-2011)“…The volcanic front in southern Central America is well known for its Galapagos OIB-like geochemical signature. A comprehensive set of geochemical, isotopic and…”
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Temporal and geochemical evolution of the Cenozoic intraplate volcanism of Zealandia
Published in Earth-science reviews (2010)“…In order to constrain better the distribution, age, geochemistry and origin of widespread Cenozoic intraplate volcanism on Zealandia, the New Zealand…”
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Tracing the effects of high-pressure metasomatic fluids and seawater alteration in blueschist-facies overprinted eclogites: Implications for subduction channel processes
Published in Chemical geology (23-01-2012)“…Eclogites from the Tian Shan high-pressure/low-temperature (HP/LT) metamorphic belt show evidence for successively increasing metasomatic alteration with…”
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Age and geochemistry of the oceanic Manihiki Plateau, SW Pacific: New evidence for a plume origin
Published in Earth and planetary science letters (01-04-2011)“…We present 40Ar/ 39Ar age and geochemical (major and trace element and Sr–Nd–Hf–Pb isotope) data from submarine samples recovered from the basement of the…”
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Tracing the Origin and Magmatic Evolution of the Rejuvenated Volcanism in Santa Clara Island, Juan Fernández Ridge, SE Pacific
Published in Minerals (Basel) (01-05-2024)“…Oceanic intraplate volcanoes sometimes experience late-stage eruptive activity known as rejuvenated volcanism, and contrasting interpretations for its…”
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Shear-assisted water-fluxed melting and AFC processes in the foreland of the Early Paleozoic Famatinian orogen: petrogenesis of leucogranites and pegmatites from the Sierras de Córdoba, Argentina
Published in International journal of earth sciences : Geologische Rundschau (01-10-2021)“…In the Comechingones pegmatitic field, central Argentina, leucogranite and pegmatite bodies crop out in a relatively narrow (25 × 10 km) belt, and were…”
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