Patrick Monien
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View article: Properties and Dispersal of a Hydrothermal Plume in a Weakly Stratified Under‐Ice Environment
Properties and Dispersal of a Hydrothermal Plume in a Weakly Stratified Under‐Ice Environment Open
The Aurora vent field (82°53.83′N, 6°15.32′W) is located in the weakly stratified Arctic Ocean under perennial ice cover at the western edge of the ultraslow‐spreading Gakkel Ridge, the slowest spreading mid‐ocean ridge on Earth. Here, we …
View article: The Jøtul field revisited: High carbon and hydrogen fluxes from a sediment‑hosted hydrothermal vent site in the Knipovic Ridge
The Jøtul field revisited: High carbon and hydrogen fluxes from a sediment‑hosted hydrothermal vent site in the Knipovic Ridge Open
We report on the composition of gas‑tight hydrothermal vent fluid samples from the Jøtul field at the ultraslow spreading Knipovic ridge, collected during the R/V MARIA S. MERIAN expedition MSM131 in September 2024. The sampled …
View article: Formation and hydrothermal alteration of a volcanic center: Melt pooling and mass transfers at Langseth Ridge (Gakkel Ridge, Arctic Ocean)
Formation and hydrothermal alteration of a volcanic center: Melt pooling and mass transfers at Langseth Ridge (Gakkel Ridge, Arctic Ocean) Open
Volcanic centers are characteristic features of ultraslow-spreading mid-ocean ridges, the least-explored parts of the global ridge system. Volcanic centers can provide insights into deep magmatic and metamorphic processes at these ridges. …
View article: Pyrite-based trace element fingerprints for methane and oil seepage
Pyrite-based trace element fingerprints for methane and oil seepage Open
Pyrite forms at marine hydrocarbon seeps as the result of the microbial oxidation of methane, organic matter, and crude oil coupled to sulphate reduction. Redox sensitive and nutrient trace elements in pyrite may hold valuable information …
View article: Shallow Thermal Anomalies and Their Role in the Breakup Evolution Along the Conjugate Margins of the Fram Strait (Svalbard and Eastern North Greenland), Indicated by Low‐Temperature Thermochronology
Shallow Thermal Anomalies and Their Role in the Breakup Evolution Along the Conjugate Margins of the Fram Strait (Svalbard and Eastern North Greenland), Indicated by Low‐Temperature Thermochronology Open
We investigated highly mature sedimentary rocks exposed along both sides of the Fram Strait in the northern North Atlantic using apatite fission track and (U‐Th)/He thermochronology to obtain information on the thermal imprint of rifting a…
View article: Pyrite-based trace element fingerprints for methane and oil seepage
Pyrite-based trace element fingerprints for methane and oil seepage Open
Pyrite forms at marine hydrocarbon seeps as the result of the microbial oxidation of methane, organic matter, and crude oil coupled to sulphate reduction.Redox sensitive and nutrient trace elements in pyrite may hold valuable information o…
View article: Phanerozoic tectonic and sedimentation history of the Arctic: constraints from deep-time low-temperature thermochronology data of Ellesmere Island and Northwest Greenland
Phanerozoic tectonic and sedimentation history of the Arctic: constraints from deep-time low-temperature thermochronology data of Ellesmere Island and Northwest Greenland Open
We present thermochronology and geochronology data from basement and (meta-)sedimentary samples collected on Ellesmere Island (Canadian High Arctic) and Northwest Greenland. The interpretations of our data are described and discussed in a …
View article: Phanerozoic tectonic and sedimentation history of the Arctic: constraints from deep-time low-temperature thermochronology data of Ellesmere Island and Northwest Greenland
Phanerozoic tectonic and sedimentation history of the Arctic: constraints from deep-time low-temperature thermochronology data of Ellesmere Island and Northwest Greenland Open
We present thermochronology and geochronology data from basement and (meta-)sedimentary samples collected on Ellesmere Island (Canadian High Arctic) and Northwest Greenland. The interpretations of our data are described and discussed in a …
View article: Trace element behavior at natural marine hydrocarbon seeps – Preliminary results and new insights from oil seepage-derived authigenic pyrite
Trace element behavior at natural marine hydrocarbon seeps – Preliminary results and new insights from oil seepage-derived authigenic pyrite Open
At marine hydrocarbon seeps, a large variety of compounds are expulsed from seafloor sediments to bottom waters.The key biogeochemical process at seeps is the sulfate-driven anaerobic oxidation of methane (AOM), mediated by a consortium of…
View article: The Eurekan in eastern North Greenland: insights from thermochronology
The Eurekan in eastern North Greenland: insights from thermochronology Open
<p>Eastern North Greenland is a key area for studying the reorganisation of the North Atlantic-Arctic Realm during the Cenozoic. Due to its crucial position at the intersection of Atlantic Ocean, Arctic Ocean, and the West Greenland …
View article: Microstructural and chemical investigation of magma-sediment mingling in natural and laboratory samples
Microstructural and chemical investigation of magma-sediment mingling in natural and laboratory samples Open
<p>Magma emplacement and the mingling of sediment with magma (forming peperite facies) in unconsolidated, near-surface basin sediments have been described in fossil systems but have not been reported in active settings. The IODP Expe…
View article: Magma-sediment mingling processes, control and longevity of related hydrothermal systems &#8211; Implications for the Earth&#8217;s Carbon-, Plate-, Life-Cycles (IODP Exp 385, Guaymas Basin, Gulf of California)
Magma-sediment mingling processes, control and longevity of related hydrothermal systems – Implications for the Earth’s Carbon-, Plate-, Life-Cycles (IODP Exp 385, Guaymas Basin, Gulf of California) Open
<p>Magma-sediment mingling occurring in shallow porous sediments is mainly investigated through field observations of old exhumed rift basins. During the IODP Expedition 385 we have drilled through the shallow sills emplaced in the a…
View article: Trace element distribution in methane-seep carbonates: The role of mineralogy and dissolved sulfide
Trace element distribution in methane-seep carbonates: The role of mineralogy and dissolved sulfide Open
Trace elements are widely used to constrain environmental conditions and biogeochemical processes through geologic time. Authigenic carbonates in particular are a reliable archive due to their ability to take up and store trace elements ov…
View article: Morphotype and Crust Effects on the Geochemistry of <i>Globorotalia inflata</i>
Morphotype and Crust Effects on the Geochemistry of <i>Globorotalia inflata</i> Open
Sedimentary specimens of the planktonic foraminifera Globorotalia inflata can provide information on subsurface conditions of past oceans. However, interpretation of their geochemical signal is complicated by possible effects of cryptic di…
View article: Thermal imprints along conjugated continental margins in response to the opening of the northern North Atlantic - case studies from eastern North Greenland and western Svalbard
Thermal imprints along conjugated continental margins in response to the opening of the northern North Atlantic - case studies from eastern North Greenland and western Svalbard Open
<p>Prior to break up of Greenland and Svalbard, the Wandel sea basin with Carboniferous to Cenozoic deposits formed in eastern North Greenland. These deposits were affected by the last major period of Arctic tectonism, the Eocene Eur…
View article: Cryptospecies and crust effects on the geochemistry of Globorotalia inflata
Cryptospecies and crust effects on the geochemistry of Globorotalia inflata Open
Sedimentary specimens of the planktonic foraminifera Globorotalia inflata can provide much needed information on subsurface conditions of past oceans. However, interpretation of its geochemical signal is complicated by possible effects of …
View article: Thermal anomalies in Late Mesozoic to Cenozoic basin deposits: What can they tell us about the separation of Greenland from Svalbard?
Thermal anomalies in Late Mesozoic to Cenozoic basin deposits: What can they tell us about the separation of Greenland from Svalbard? Open
<p>Paleogene rocks from Svalbard yield exceptionally high vitrinite reflectance values up to 4%. Even higher vitrinite reflectance data, along with high bitumen reflectance values, are found from Cretaceous to Paleogene rocks of the …
View article: Stable isotopes, counts and raw element data of Globorotalia inflata from sediment cores, Southwest Atlantic
Stable isotopes, counts and raw element data of Globorotalia inflata from sediment cores, Southwest Atlantic Open
Sedimentary specimens of the planktonic foraminifera Globorotalia inflata can provide much needed information on subsurface conditions of past oceans. However, interpretation of its geochemical signal is complicated by possible effects of …
View article: On the controls of mineral assemblages and textures in alkaline springs, Samail Ophiolite, Oman
On the controls of mineral assemblages and textures in alkaline springs, Samail Ophiolite, Oman Open
Interactions between meteoric water and ultramafic rocks in the Oman Ophiolite generate waters of variable physicochemical characteristics. The discharge of these waters forms complex alkaline pool networks, in which mineral precipitation …
View article: Post Mid‐Cretaceous Tectonic and Topographic Evolution of Western Marie Byrd Land, WestAntarctica: Insights from Apatite FissionTrack and (U‐Th‐Sm)/He Data
Post Mid‐Cretaceous Tectonic and Topographic Evolution of Western Marie Byrd Land, WestAntarctica: Insights from Apatite FissionTrack and (U‐Th‐Sm)/He Data Open
New low‐temperature thermochronological data from granitic basement of western Marie Byrd Land (MBL) provide insights into the still poorly constrained tectonic and topographic evolution of West Antarctica during and after continental brea…
View article: Exhuming the Top End of North America: Episodic Evolution of the Eurekan Belt and Its Potential Relationships to North Atlantic Plate Tectonics and Arctic Climate Change
Exhuming the Top End of North America: Episodic Evolution of the Eurekan Belt and Its Potential Relationships to North Atlantic Plate Tectonics and Arctic Climate Change Open
We present the first low‐temperature thermochronology data from northernmost Ellesmere Island (Canadian Arctic), along with palynological data from Paleogene sediments. Our study area is part of the >2,500‐km‐long Eurekan deformation belt …
View article: Thurston Island (West Antarctica) Between Gondwana Subduction and Continental Separation: A Multistage Evolution Revealed by Apatite Thermochronology
Thurston Island (West Antarctica) Between Gondwana Subduction and Continental Separation: A Multistage Evolution Revealed by Apatite Thermochronology Open
The first low‐temperature thermochronological data from Thurston Island, West Antarctica, provide insights into the poorly constrained thermotectonic evolution of the paleo‐Pacific margin of Gondwana since the Late Paleozoic. Here we prese…
View article: Thermochronology data from Pearya Terrane, Ellesmere Island, North Canadian Margin
Thermochronology data from Pearya Terrane, Ellesmere Island, North Canadian Margin Open
Thermochronology data suggest Eocene high-latitude rapid exhumation and topography formation. Enhanced exhumation of northern Ellesmere Island occurred ~67-59 Ma, ~55-48 Ma, 44-38 Ma, and 34-26 Ma. These exhumation periods largely correlat…
View article: Benthic meltwater fjord habitats formed by rapid glacier recession on King George Island, Antarctica
Benthic meltwater fjord habitats formed by rapid glacier recession on King George Island, Antarctica Open
The coasts of the West Antarctic Peninsula are strongly influenced by glacier meltwater discharge. The spatial structure and biogeochemical composition of inshore habitats are shaped by large quantities of terrigenous particulate material …
View article: Supplementary material from "Benthic meltwater fjord habitats formed by rapid glacier recession on King George Island, Antarctica"
Supplementary material from "Benthic meltwater fjord habitats formed by rapid glacier recession on King George Island, Antarctica" Open
The coasts of the West Antarctic Peninsula are strongly influenced by glacier meltwater discharge. The spatial structure and biogeochemical composition of inshore habitats are shaped by large quantities of terrigenous particulate material …