Kaarel Mänd
Kaarel Mänd
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The Kaolinite Shuttle Links the Great Oxidation and Lomagundi Events
The ~2.22–2.06 Ga Lomagundi Event was the longest positive carbon isotope excursion in Earth’s history and is commonly interpreted to …
Weiduo Hao
,
Kaarel Mänd
,
Yuhao Li
,
Daniel S. Alessi
,
Peeter Somelar
,
Mathieu Moussavou
,
Alexander E. Romashkin
,
Aivo Lepland
,
Kalle Kirsimäe
,
Noah J. Planavsky
,
Kurt O. Konhauser
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DOI
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Iron Isotopes Reveal a Benthic Iron Shuttle in the Palaeoproterozoic Zaonega Formation: Basinal Restriction, Euxinia, and the Effect on Global Palaeoredox Proxies
The Zaonega Formation in northwest Russia (~ 2.0 billion years old) is amongst the most complete successions that record the middle of …
Kaarel Mänd
,
Stefan V. Lalonde
,
Kärt Paiste
,
Marie Thoby
,
Kaarel Lumiste
,
Leslie J. Robbins
,
Timmu Kreitsmann
,
Alexander E. Romashkin
,
Kalle Kirsimäe
,
Aivo Lepland
,
Kurt O. Konhauser
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Constraining the conditions of phosphogenesis: Stable isotope and trace element systematics of Recent Namibian phosphatic sediments
Modern phosphogenesis occurs on continental margins influenced by upwelling and high primary productivity. The formation of phosphatic …
Kaarel Lumiste
,
Kaarel Mänd
,
Jake Bailey
,
Eva E. Stüeken
,
Kärt Paiste
,
Liisa Lang
,
Holar Sepp
,
Aivo Lepland
,
Kalle Kirsimäe
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DOI
Depositional and environmental constraints on the late Neoarchean Dagushan deposit (Anshan-Benxi area, North China Craton): An Algoma-type banded iron formation
The late Neoarchean, ~ 2.53 to 2.51 Ga Dagushan banded iron formation (BIF), is a typical Algoma-type BIF located in the northeast part …
Xiaoxue Tong
,
Changle Wang
,
Zidong Peng
,
Yuhao Li
,
Weiduo Hao
,
Kaarel Mänd
,
Leslie J. Robbins
,
Lianchang Zhang
,
Qiang Ke
,
Mingguo Zhai
,
Kurt O. Konhauser
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Iron and carbon isotope constraints on the formation pathway of iron-rich carbonates within the Dagushan Iron Formation, North China Craton
Banded iron formations (BIFs) are enigmatic chemical sedimentary rocks that chronicle the geochemical and microbial cycling of iron and …
Xiaoxue Tong
,
Kaarel Mänd
,
Yuhao Li
,
Lianchang Zhang
,
Zidong Peng
,
Qiang Wu
,
Pengbo Li
,
Mingguo Zhai
,
Leslie J. Robbins
,
Changle Wang
,
Kurt O. Konhauser
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Trace Elemental Partitioning on Clays Derived from Hydrothermal Muds of the El Tatio Geyser Field, Chile
Recent experimental studies have demonstrated that clay minerals (e.g., kaolinite, illite, and montmorillonite) have higher affinities …
Weiduo Hao
,
Kaarel Mänd
,
Logan Swaren
,
Kimberly D. Myers
,
Stefan Lalonde
,
Dylan T. Wilmeth
,
Mark Van Zuilen
,
Siobhan A. Wilson
,
Daniel S. Alessi
,
Kurt O. Konhauser
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Oxygenated conditions in the aftermath of the Lomagundi-Jatuli Event: The carbon isotope and rare earth element signatures of the Paleoproterozoic Zaonega Formation, Russia
The c. 2.0 Ga Zaonega Formation of the Onega Basin (NW Russia) has been central in efforts to understand what led to the initial rise …
Timmu Kreitsmann
,
Aivo Lepland
,
Michael Bau
,
Anthony Prave
,
Kärt Paiste
,
Kaarel Mänd
,
Holar Sepp
,
Tõnu Martma
,
Alexander E. Romashkin
,
Kalle Kirsimäe
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Identifying global vs. basinal controls on Paleoproterozoic organic carbon and sulfur isotope records
Paleoproterozoic sedimentary successions are important archives of the redox evolution of Earth’s atmosphere and oceans. Efforts to …
Kärt Paiste
,
Aivo Lepland
,
Aubrey L. Zerkle
,
Kalle Kirsimäe
,
Timmu Kreitsmann
,
Kaarel Mänd
,
Alexander E. Romashkin
,
Dmitry V. Rychanchik
,
Anthony R. Prave
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DOI
Hydrothermally induced $^{34}$S enrichment in pyrite as an alternative explanation of the Late-Devonian sulfur isotope excursion in South China
Several Late Devonian sedimentary successions host pyrite with highly positive sulfur isotope values (δ34Spyrite). These anomalous …
Hao Yan
,
Daohui Pi
,
Shao-Yong Jiang
,
Weiduo Hao
,
Huan Cui
,
Leslie J. Robbins
,
Kaarel Mänd
,
Long Li
,
Noah J. Planavsky
,
Kurt O. Konhauser
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New constraints on the onset age of the Emeishan LIP volcanism and implications for the Guadalupian mass extinction
The onset of the Middle Permian Emeishan Large Igneous Province (ELIP), is commonly implicated in the Guadalupian mass extinction, one …
Hao Yan
,
Dao-Hui Pi
,
Shao-Yong Jiang
,
Weiduo Hao
,
Kaarel Mänd
,
Leslie J. Robbins
,
Long Li
,
Kurt O. Konhauser
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