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261
Carbon in Mineralised Plutons
Published 2022-05-01“…The Paleoproterozoic schists of the Leverburgh Belt, South Harris and the Neoproterozoic carbonaceous metasediments of the Dalradian Supergroup were deposited during the two most significant periods of black shale deposition globally. …”
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262
Re-discussion on the detrital zircon provenance of the lower Yanchang Formation in the southern Ordos Basin
Published 2016-01-01“…The two older age groups (Paleoproterozoic, and Neoarchean) are likely derived from the North China Craton basement. …”
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263
Detrital zircon geochronology of the Lützow-Holm Complex, East Antarctica: Implications for Antarctica–Sri Lanka correlation
Published 2018-03-01“…The Lützow-Holm Complex (LHC) of East Antarctica has been regarded as a collage of Neoarchean (ca. 2.5 Ga), Paleoproterozoic (ca. 1.8 Ga), and Neoproterozoic (ca. 1.0 Ga) magmatic arcs which were amalgamated through the latest Neoproterozoic collisional events during the assembly of Gondwana supercontinent. …”
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264
AGE OF THE EARLY PALEOZOIC GRANITOID MAGMATISMIN THE CENTRAL PART OF THE BUREYA CONTINENTAL MASSIF, CENTRAL ASIAN FOLD BELT
Published 2020-03-01“…The Sm-Nd isotope studies show that Late Ordovician quartz monzonites were formed mainly from crustal sources with Paleoproterozoic Nd model isotopic ages. Both ancient (Paleoproterozoic?) …”
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265
Structures of sulfide melt crystallization as an indication of metamorphism of the ores in the Oleninskoe gold deposit
Published 2020-04-01“…Signs of the Paleoproterozoic metamorphism are found in the ores of the neighboring Cu-Mo porphyry Pellapahk deposit as well.…”
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266
Nanoscale analysis of pyritized microfossils reveals differential heterotrophic consumption in the ~1.9-Ga Gunflint chert.
Published 2013“…This work also extends the record of remarkable biological preservation in pyrite back to the Paleoproterozoic and provides criteria to assess the authenticity of even older pyritized microstructures that may represent some of the earliest evidence for life on our planet.…”
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267
Increased biomass and carbon burial 2 billion years ago triggered mountain building
Published 2021-11-01“…High burial of organic carbon in sediments around 2 billion years ago acted to enhance crustal deformation and led to intensified mountain building both in the Paleoproterozoic and since, suggests an assessment of the timing of carbon burial and deformation…”
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268
Crustal growth history of the Korean Peninsula: Constraints from detrital zircon ages in modern river sediments
Published 2016-09-01“…Comparison of detrital zircon-age data between the North and South Korean river sediments reveals that the Paleoproterozoic zircon age distributions of both regions are nearly identical, while the Neoproterozoic–Paleozoic ages exist and the Mesozoic ages are dominant in southern Korean Peninsula. …”
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269
In Situ Isotopic Analyses of U and Pb in Zircon by Remotely Operated SHRIMP II, and Hf by LA-ICP-MS: an Example of Dating and Genetic Evolution of Zircon by 176Hf/177Hf from the It...
Published 2009-10-01“…The presence of important archean and paleoproterozoic components in the complex isconfi rmed by analyses of zircon found in probably neoproterozoic leucosomes. …”
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270
The Multiple Metamorphism of Mafic Granulites From the East Hebei Terrane, North China Craton: Insights Into the Transition of Tectonic Regimes
Published 2022-05-01“…This study may have indications for the Neoarchean–Paleoproterozoic tectonic transition of the craton.…”
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271
Composition of the Sub‐Cratonic Mantle of the Guiana Shield Inferred From Diamond‐Hosted Inclusions
Published 2021-06-01“…Abstract The composition of diamond‐hosted inclusions provides insight into the character of the sub‐cratonic lithosphere of the Guiana Shield. Guyana's Paleoproterozoic diamonds preserve an inclusion suite comprised of forsterite (Fo ∼89.3–91.8), enstatite, chromite, and Cr‐pyrope. …”
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272
Petrography, geochemistry and Sm-Nd isotopes of the granites from eastern of the Tapajós Domain, Pará state
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273
Contribution to the Geology and Geochronology of the Rio Capibaribe Terrane (TRC, Borborema Province)
Published 2013-06-01“…This terrane exhibits gneissic-migmatitic basement complexes of Paleoproterozoic age and Neoproterozoicfold belts of the Tonian (“Cariris Velhos” cycle) and the Cryogenian – Ediacaran (“Brasiliano” cycle). …”
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274
Origin of Mesozoic Porphyritic Rocks and Regional Magmatic Evolution in the Zijinshan Ore Field of Fujian Province, China: Hf-O Isotope Characteristics of Magmatic Zircons
Published 2020-12-01“…The Paleoproterozoic crust was the predominant magmatic source for the subsequent Mesoproterozoic to Jurassic magmatism, but the only melts that were closely related to mineralization were derived from partial melting of the Mesoproterozoic crust and a more depleted upper mantle.…”
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275
Detrital Zircons U-Pb Age and Hf Isotope from the Western Side of the Taiwan Strait: Implications for Sediment Provenance and Crustal Evolution of the Northeast Cathaysia Block
Published 2014-01-01“…The wide ranges of εHf(t) value in the Paleoproterozoic and Neoproterozoic demonstrate the re-melting of ancient crustal materials with minor juvenile mantle materials. …”
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276
Antiperthite and Mesoperthite Exsolution Textures in the Zhengjiapo BIF, Changyi Metallogenic Belt, North China Craton: Evidence of UHT Metamorphic Overprint
Published 2023-07-01“…Paleoproterozoic banded iron formation (BIF) iron ore of the Zhengjiapo region of the Changyi metallogenic belt, Eastern Block of North China Craton contains abundant coexisting antiperthite and mesoperthite textures. …”
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277
Before-Cambrian geology on the territory of the Botanic Garden
Published 2001-12-01“…The description of the crystal foundation’s structure on the territory of the PetrSU Botanic Garden that is represented by different facial volcanogenous formations (lavas, tufas and others) of the Suisar and Zaonegye suites of the paleoproterozoic period is adduced. The got geochronological data served the material for the cor- relation between the Suisar formations and those of other Fennoskandian regions, carried out with the help of Sm-Nd and Pb-Pb methods (1975 ± 24 and 1980 ± 57 mln years).…”
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278
A preserved early Ediacaran magmatic arc at the northernmost portion of the Transversal Zone central subprovince of the Borborema Province, Northeastern South America
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279
Zircon U–Pb Age and Geochemistry of Ore-Hosting Rocks from the Liuhe Orefield of the Jiapigou Gold Ore Belt, NE China: Magmatism and Tectonic Implications
Published 2022-09-01“…Zircon U–Pb data suggest that the ore-hosting magma emplacement in the Liuhe orefield mainly took place in two epochs: late Neoarchean to early Paleoproterozoic (ca. 2500 Ma) and early Jurassic of the Mesozoic era (ca. 170 Ma). …”
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280
Spinel + quartz-bearing ultrahigh-temperature granulites from Xumayao, Inner Mongolia Suture Zone, North China Craton: Petrology, phase equilibria and counterclockwise p-T path
Published 2012-09-01“…The Khondalite Belt within the Inner Mongolia Suture Zone (IMSZ) in the North China Craton is a classic example for Paleoproterozoic ultrahigh-temperature (UHT) metamorphism. …”
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