Vol. 321, Issue 6, 2021

Geodynamic Environment of the ca. 3800 Ma Outer Arc Group, Isua (Greenland)

Allen P. NutmanClark R.L. FriendVickie C. BennettMartin van KranendonkAllan R. Chivas

The arcuate, 35 km long Isua supracrustal belt (ISB, southern West Greenland) contains the world9s largest remnants of Eoarchean volcanic and sedimentary sequences. The ISB is broadly divided into: (i)...

Science Paper

Petrogenesis and Tectonic Implications of TTG Granitoids From the Daqingshan Complex of the Khondalite Belt, North China Craton

Xiao WangJian ZhangChangqing YinHai ZhouJin LiuXiaoguang LiuChen Zhao

Located in the Western Block of the North China Craton, the Khondalite Belt is one of the three Paleoproterozoic tectonic belts that were linked to the final assembly of the...

Science Paper
An Early Paleoproterozoic Back-Arc System Along the Southern Margin of the Yinshan Block: Evidence From a Newly-Defined Bimodal Volcanic Sequence in the Daqingshan Complex, Khondalite Belt
Xiao WangJian ZhangChangqing YinHai ZhouJin LiuWenxia ZhangShuhui ZhangChen ZhaoChangquan Cheng
As one of the 2.1 to 1.9 Ga orogenic belts that welded the Columbia supercontinent, the Khondalite Belt in the North China Craton is a typical continent-continent collisional orogen that...
Science Paper
Chronological and Geochemical Variations of the Late Mesozoic Granitoids in the Taihang Mountains and Middle-Southern Tan-Lu Fault: Implications for Lithosphere Destruction of the North China Craton
Yue-Lan KangYu-Ruo ShiJ. Lawford Anderson
In the Late Mesozoic, the North China Craton (NCC) underwent significant lithospheric thinning and destruction, especially in the eastern part, but the mechanism and timing related to this process are...
Science Paper
Multiphase Ophiolite Formation in the Northern Altyn Tagh Orogen, Southeastern Tarim
Qian LiuToshiaki TsunogaeGuochun ZhaoJianhua LiJinlong YaoYigui HanPeng Wang
Early Paleozoic ophiolitic mélanges in the Altyn Tagh Orogen, southeastern Tarim, yield a large range of formation ages and geochemical affinities. This study focused on the Hongliugou ophiolitic mélange in...
Science Paper
A Highly Dynamic Hot Hydrothermal System in the Subduction Environment: Geochemistry and Geochronology of Jadeitite and Associated Rocks of the Sierra Del Convento Mélange (Eastern Cuba)
Juan Cárdenas-PárragaAntonio Garcia-CascoIdael F. Blanco-QuinteroYamirka Rojas-AgramonteKenya Nuñez CambraGeorge E. Harlow
A U-Pb zircon date of ∼113 Ma revealed that a variety of jadeitites and related omphacitite, chloritite and albite-rich rocks from the subduction-related Sierra del Convento block-in-serpentinite-matrix mélange (eastern Cuba)...

Science Paper

Composition and Provenance Analysis of Beach Sands in an Almost Isolated Sedimentary System – a Field Study of the Galápagos Archipelago

Klemens SeelosYamirka Rojas-AgramonteAlfred KrönerTheofilos ToulkeridisGillian InderwiesYvonne Buelow

The Galápagos Archipelago is the surface expression of an active hotspot or long-lived mantle plume. The Archipelago consists of a group of 13 main islands which are located in the...

Science Paper

Reconstructing Lost Plates of the Panthalassa Ocean Through Paleomagnetic Data From circum-Pacific Accretionary Orogens

Lydian M. BoschmanDouwe J.J. van HinsbergenCor G. LangereisKennet E. FloresPeter J.J. KampDavid L. KimbroughHayato UedaSuzanna H.A. van de LagemaatErik van der WielWim Spakman

The Panthalassa Ocean, which surrounded the late Paleozoic-early Mesozoic Pangea supercontinent, was underlain by multiple tectonic plates that have since been lost to subduction. In this study, we develop an...

Science Paper

Deciphering Paleogeography From Orogenic Architecture: Constructing Orogens in a Future Supercontinent as Thought Experiment

Douwe J. J. van HinsbergenThomas L. A. Schouten

Orogens that form at convergent plate boundaries typically consist of accreted rock units that form an incomplete archive of subducted oceanic and continental lithosphere, as well as of deformed lithosphere...

Miscellaneous
Preface: THIS IS the SECOND ISSUE DEDICATED to the MEMORY of DISTINGUISHED SCIENTIST ALFRED KRONER WHO SADLY PASSED AWAY on 22 MAY 2019
Simon A. WildeShoujie LiuYamirka Rojas-AgramonteGuochun Zhao
...
Miscellaneous
Foreword
Simon A. Wilde
...

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