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Polymorphic transformations of titanium oxides contribute to economic uranium mineralization in sandstone
Geology March 20, 2024, Vol.52, 481-485. doi:https://doi.org/10.1130/G51982.1
Disconformity-controlled hydrothermal dolomitization and cementation during basin evolution: Upper Triassic carbonates, UAE
Geology March 21, 2024, Vol.52, 486-491. doi:https://doi.org/10.1130/G51990.1
Ice? Salt? Pressure? Sediment deformation structures as evidence of late-stage shallow groundwater in Gale crater, Mars
Steven G. Banham; Amelie L. Roberts; Sanjeev Gupta; Joel M. Davis; Lucy M. Thompson; David M. Rubin; Gerhard Paar; Kirsten L. Siebach; William E. Dietrich; Abigail A. Fraeman; Ashwin R. Vasavada
Geology March 22, 2024, Vol.52, 492-496. doi:https://doi.org/10.1130/G51849.1
Exceptional preservation of a marine tapeworm tentacle in Cretaceous amber
Geology March 22, 2024, Vol.52, 497-501. doi:https://doi.org/10.1130/G52071.1
Okanogan lobe tunnel channels and subglacial floods into Moses Coulee, Channeled Scabland, northwestern United States
Geology March 28, 2024, Vol.52, 502-506. doi:https://doi.org/10.1130/G52005.1
Rehydrated glass embayments record the cooling of a Yellowstone ignimbrite
Geology March 26, 2024, Vol.52, 507-511. doi:https://doi.org/10.1130/G51905.1
Landscapes on the edge: River intermittency in a warming world
Jonah S. McLeod; Alexander C. Whittaker; Rebecca E. Bell; Gary J. Hampson; Stephen E. Watkins; Sam A.S. Brooke; Nahin Rezwan; Joel Hook; Jesse R. Zondervan; Vamsi Ganti; Sinéad J. Lyster
Geology March 26, 2024, Vol.52, 512-516. doi:https://doi.org/10.1130/G52043.1
Evidence for ca. 1 Ga hypervelocity impact event found in northwest Greenland
William R. Hyde; Gavin G. Kenny; Steven J. Jaret; Joseph A. MacGregor; Pierre Beck; Martin J. Whitehouse; Nicolaj K. Larsen
Geology April 12, 2024, Vol.52, 517-521. doi:https://doi.org/10.1130/G51876.1
Bedrock rivers are steep but not narrow: Hydrological and lithological controls on river geometry across the USA
Geology March 27, 2024, Vol.52, 522-526. doi:https://doi.org/10.1130/G51627.1
Subsidence-induced early doming at a large ignimbrite caldera
Geology April 05, 2024, Vol.52, 527-532. doi:https://doi.org/10.1130/G52130.1
Bank strength variability and its impact on the system-scale morphodynamics of the upper Amazon River in Brazil
Muriel Z.M. Brückner; Rolf E. Aalto; Jim Best; Renato Paes de Almeida; Andrew P. Nicholas; Philip J. Ashworth; Marco Ianniruberto
Geology April 09, 2024, Vol.52, 533-538. doi:https://doi.org/10.1130/G51862.1
Oligocene melting of subducted mélange and its mantle dynamics in northeast Asia
Geology April 12, 2024, Vol.52, 539-544. doi:https://doi.org/10.1130/G52115.1
A little mica goes a long way: Impact of phyllosilicates on quartz deformation fabrics in naturally deformed rocks
Geology April 16, 2024, Vol.52, 545-549. doi:https://doi.org/10.1130/G52053.1
Alkenone-derived estimates of Cretaceous pCO2
Weimin Si; Joseph B. Novak; Nora Richter; Pratigya Polissar; Ruigang Ma; Ewerton Santos; Jared Nirenberg; Timothy D. Herbert; Marie-Pierre Aubry
Geology April 23, 2024, Vol.52, 555-559. doi:https://doi.org/10.1130/G51939.1
Scoria cone erosional degradation by incision: Different behaviors in three volcanic fields reflect environmental conditions
Geology April 26, 2024, Vol.52, 565-569. doi:https://doi.org/10.1130/G52113.1
Bacterial magnetofossil evidence for enhanced Pacific Ocean respired carbon storage during buildup of Antarctic glaciation
Dunfan Wang; Yihui Chen; Yan Liu; Andrew P. Roberts; Eelco J. Rohling; Xiangyu Zhao; Xu Zhang; Jinhua Li; Weiqi Yao; Xuejiao Qu; Xianfeng Tan; Qingsong Liu
Geology April 26, 2024, Vol.52, 570-574. doi:https://doi.org/10.1130/G52016.1
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Cover Image
Cover Image
COVER: Margin of the Greenland Ice Sheet in the exposed foreland in Inglefield Land, northwestern Greenland. Multiple detrital impact melt rocks were retrieved at this and other locations along the ice wall or within glaciofluvial channels, all recently emerged from under the ice. All but one of the radiometrically dated samples record a Late Paleocene impact event attributed to the proximal 31-km-wide Hiawatha Impact Structure; however, a single pebble-sized sample contains evidence of a second, ancient hypervelocity impact event that occurred in the Paleoproterozoic, around one billion years ago. (Coordinates: 78.58920, –66.81570, looking north.) See “Evidence for ca. 1 Ga hypervelocity impact event found in northwest Greenland,” by William Hyde et al., p. 517–521..
Photo by Pierre Beck
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