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January 2026 Issue

December 2025 Issue

November 2025 Issue

October 2025 Issue

September 2025 Issue

August 2025 Issue

July 2025 Issue

June 2025 Issue

May 2025 Issue

February 2026 issue of Geology

Rising productivity drove marine euxinia during the Late Devonian mass extinctions.

Eclogite-facies metamorphism of continental crust at the Mesoarchean-to-Neoarchean transition | Geology | GeoScienceWorld

New species evolved within a few thousand years of the Chicxulub Impact | Geology | GeoScienceWorld

Thallium isotopic evidence for the Tonian rise and Cryogenian fall of Neoproterozoic oxygen levels | Geology | GeoScienceWorld

Geology- Janurary 2026 Issue

Investigating the response of Glycymeris septentrionalis (Bivalvia) and Terebratalia transversa (Brachiopoda) to euxinia: Implications for mass extinctions | Geology | GeoScienceWorld

Mantle-driven, climatically modulated landscape evolution in Southern Patagonia | Geology | GeoScienceWorld

Chemosynthetic microbial communities formed wrinkle structures in ancient turbidites | Geology | GeoScienceWorld

Seafloor weathering can explain the disparate durations of Snowball glaciations | Geology | GeoScienceWorld

Intraplate volcanism induced by magmatic solitary waves ascending from the mantle transition zone | Geology | GeoScienceWorld

Global distribution, hierarchical clustering classification, and significance of Holocene braid deltas | Geology | GeoScienceWorld

Pyrochlore nanomineralogy questions the immobility of niobium during tropical weathering | Geology | GeoScienceWorld

November 2025 Issue

Salinity limited methane cycling in lacustrine settings during the Paleocene−Eocene Thermal Maximum | Geology | GeoScienceWorld

Symmetry versus asymmetry of rifted margins: The role of mechanical anisotropy | Geology | GeoScienceWorld

Microtextural analyses of detrital zircon for paleoenvironmental interpretations of metasedimentary rocks | Geology | GeoScienceWorld

Source-oxidized and (super-)wet magmas explain porphyry copper fertility vectors: A thermodynamic modeling approach

Paleoseismic evidence of directivity for the 1976 Mw 7.5 Motagua earthquake, Guatemala | Geology | GeoScienceWorld

Transient evidence of shallow coseismic submarine landslides shaping canyon head geomorphology: Insights from the 2016 Kaikōura earthquake, New Zealand | Geology | GeoScienceWorld

Buoyancy of volatile-rich kimberlite melts, magma ascent, and xenolith transport | Geology | GeoScienceWorld

Evolution of skeletal mineralogy in cheilostome bryozoans from calcite to aragonite seas | Geology | GeoScienceWorld

Unique leaf mimicry in Jurassic insects | Geology | GeoScienceWorld

Slab break-off and subduction polarity reversal after collision can be very fast | Geology | GeoScienceWorld

September 2025 Issue

Impact of seamounts on the hydration of subducting plates | Geology | GeoScienceWorld

The unexpected global distribution of Earth’s sediment sources and sinks | Geology | GeoScienceWorld

From flow to furnace: Low viscosity of three-phase lavas measured at Kīlauea 2018 eruption conditions | Geology | GeoScienceWorld

Grand Canyon landslide-dam and paleolake triggered by the Meteor Crater impact at 56 ka | Geology | GeoScienceWorld

Exceptionally preserved epithelial cell−controlled organic templates in Cambrian chancelloriid sclerites | Geology | GeoScienceWorld

A viable Labrador Sea rifting origin of the Northern Appalachian and related seismic anomalies | Geology | GeoScienceWorld

August 2025 Issue

Microbial indicators and detection of Cu-sulfide ore mineralization

July 2025 Issue

The mechanical genesis of “fairy circle” depressions

June 2025 Issue

May 2025 Issue

Magma evolution and ascent mechanisms at inflated spreading ridges in backarc settings: The Marsili seamount (Tyrrhenian Sea, Italy)

Late Cretaceous to late Eocene (ca. 85–37 Ma) pre-extensional cooling of the Nevadaplano (east-central Nevada and west-central Utah, USA): A case study for lithospheric refrigeration during Laramide flat-slab subduction

Carbonate U/Th ages confirm the Mono Basin excursion as the Laschamps geomagnetic excursion.

Constraining the paleoclimate and paleoecology of the Selandian-Thanetian transition in the Lower Wilcox Group, Texas Gulf Coast, USA.

Mantle heating drove short-duration Barrovian-type regional metamorphism during the Paleoproterozoic Penokean orogeny, Michigan (USA)

Evolution of the Ballantrae Complex, SW Scotland: From the opening of the Iapetus to the Taconian-Grampian orogeny | GSA Bulletin | GeoScienceWorld

Space weathering effects on the lunar farside revealed by Chang’e-6 samples | GSA Bulletin | GeoScienceWorld

Variscan granitoid magmatism in Northwest Iberia (Europe): Age and nature of the melting events and implications for continental orogenic evolution | GSA Bulletin | GeoScienceWorld

Tree-ring records reveal the positive feedback between debris flow and climate warming in a periglacial watershed, Eastern Himalaya Syntaxis | GSA Bulletin | GeoScienceWorld

GSA Bulletin- January-February 2026 Issue

The Decorah impact structure (Iowa, USA): A case study for assessing target water depth and paleoenvironment for past marine target impacts in present-day non-marine locations | GSA Bulletin | GeoScienceWorld

Geodynamics of divergent double subduction: A case study of the Molucca Sea microplate in Southeast Asia | GSA Bulletin | GeoScienceWorld

Petrochronology of the East Pond Metamorphic Suite eclogite, Baie Verte Peninsula, Newfoundland, Canada

New insights into the geology and formation of the Araguainha impact structure, Brazil, from morphological and structural analysis

Transform fault system: A microplate-based perspective on transform faults | GSA Bulletin | GeoScienceWorld

Platform evolution and sequence architecture of an ancient (Pennsylvanian: Desmoinesian−Missourian) laterally mixed shelf, Sacramento Mountains, New Mexico | GSA Bulletin | GeoScienceWorld

Magnetite-apatite deposits of the New Jersey Highlands, USA: Geochronological evidence for orogen-scale Fe-P-(Ti) mineralization during the Grenvillian Orogeny | GSA Bulletin | GeoScienceWorld

The Late Paleogene Çankırı Basin of Türkiye: The geologic record of lithospheric foundering beneath the Central Anatolian Plateau | GSA Bulletin | GeoScienceWorld

Seismogenic fault model of the 2024 Mw 7.0 Wushi earthquake, western China, from geomorphology and aftershock relocation | GSA Bulletin | GeoScienceWorld

In situ stress of coal reservoir in southwestern Qinshui Basin, China, and its influences on hydraulic fracturing | GSA Bulletin | GeoScienceWorld

Late Triassic epithermal Au-Te overprinting on a Silurian volcanogenic massive sulfide system: Geochronology and fluorine-mediated metal remobilization in the Yinzishan deposit, Southwest China | GSA Bulletin | GeoScienceWorld

Early to middle Eocene (50−43 Ma) Xianqian Basin in central Tibet: Archives of arid paleoenvironments and a southward plateau uplift trend | GSA Bulletin | GeoScienceWorld

Authigenic biosignatures of microbial biomass preserved as carbonate ooids formed by abiotic chemically oscillating reactions throughout Earth history | GSA Bulletin | GeoScienceWorld

Spatio-temporal volume recalibration shows Deccan volcanism caused Terminal Cretaceous Mass Extinction | GSA Bulletin | GeoScienceWorld

An empirical test of maximum depositional age through paired LA-ICP-MS and CA-ID-TIMS detrital zircon analysis with implications for the “Nevadan orogeny” in the Sierra Nevada foothills, California, USA | GSA Bulletin | GeoScienceWorld

Refined chronology of late Quaternary eruptions at Harrat Khaybar, Saudi Arabia, with implications for magma dynamics and regional volcanic history

Discharge variability drives point-bar macroform degradation in the meandering Powder River (Montana, USA) | GSA Bulletin | GeoScienceWorld

November/December 2025 Issue

Andean-type granites in a non-Andean post-collisional setting, Central System batholith, Spain | GSA Bulletin | GeoScienceWorld

Salt diapirs as an architect of Neoproterozoic stromatolite platform reefs | GSA Bulletin | GeoScienceWorld

The 1093 Ma Crystal Lake Intrusion: A nickel-copper mineralized intrusion emplaced during the younger southwest−northeast rift phase of the Midcontinent Rift (North America) | GSA Bulletin | GeoScienceWorld

Late Ordovician regional high-pressure metamorphism in Scotland, UK: Caledonian metamorphic climax predated the closure of the Iapetus Ocean | GSA Bulletin | GeoScienceWorld

Low sinuosity meandering rivers before vascular plants: Cambrian Tapeats Formation, Arizona, USA | GSA Bulletin | GeoScienceWorld

The role of pre-salt relief and detachment surfaces in thin-skinned tectonics: The Palmahim rapidly gliding corridor and the Dor rollover anticline, offshore Israel | GSA Bulletin | GeoScienceWorld

Structures, compositions, and origins of glass beads in the lunar Chang’e-5 samples reveal the complexity of local regolith

Origin and evolution of mafic volcanism associated with 3 m.y. of andesite production at the Goat Rocks volcanic cluster, southern Washington Cascade Range | GSA Bulletin | GeoScienceWorld

Early Carboniferous association of mafic dike and A-type granite in north-central Inner Mongolia, North China: Insights into initial backarc rifting and backarc basin tempo | GSA Bulletin | GeoScienceWorld

Carbonation of oceanic serpentinite related to extensive intraplate magmatism | GSA Bulletin | GeoScienceWorld

Enhanced global terrestrial moisture from the Early Triassic to the Late Triassic: Evidence from extensive Neocalamites forests in North China | GSA Bulletin | GeoScienceWorld

Phytoliths reveal Paleocene−Eocene forest expansions preceded dryland vegetation in southern South America | GSA Bulletin | GeoScienceWorld

Neoproterozoic backarc S-type granite in the Jiangnan fold belt, South China: Implication for initiation of modern-style plate tectonics | GSA Bulletin | GeoScienceWorld

Tracking the growth and deformation of fissure phreatomagmatic eruptions: Insights from the ca. 3.9 ka Nisida eruption at Campi Flegrei caldera, southern Italy | GSA Bulletin | GeoScienceWorld

SedST: An updated chronological database for ocean sediments | GSA Bulletin | GeoScienceWorld

Water-gas-rock interactions and their variations in coal measures during evolution of the North China Craton Basin | GSA Bulletin | GeoScienceWorld

Basin confinement influences river delta elevation profiles | GSA Bulletin | GeoScienceWorld

Reservoir regulations altered spatiotemporal evolution of the river channel in the Lower Yellow River (Huanghe), China | GSA Bulletin | GeoScienceWorld

September/October 2025 Issue

Linking detrital minerals to their source: The use of U-Pb-Hf data to untangle Laurentian and Gondwanan (Ganderian) sources | GSA Bulletin | GeoScienceWorld

A terrestrial-marine continuum model for diaspore-dominated karstic bauxite deposits | GSA Bulletin | GeoScienceWorld

Numerical simulation of the shallow marine target Wetumpka impact crater (Alabama, USA) | GSA Bulletin | GeoScienceWorld

Integrated event stratigraphic framework of the marine Upper Cretaceous (Santonian-Maastrichtian) deposits of the eastern Mississippi Embayment, USA | GSA Bulletin | GeoScienceWorld

Differentiating between salt-tectonic and paleoclimatic processes in Quaternary sedimentary records from the Fisher Valley basin, Utah | GSA Bulletin | GeoScienceWorld

Sedimentary manganese carbonate deposits as faithful proxies of ancient ocean redox fluctuations: Insights from the Permian Zunyi Mn deposits, South China | GSA Bulletin | GeoScienceWorld

Controls on the evolution of large Upper Cambrian microbial buildups in Mason County, Texas, USA: Bridging the gaps between scales from microbes to large buildup architecture | GSA Bulletin | GeoScienceWorld

Back to the suture: Bridge River−Hozomeen ribbon cherts reveal long-lived ocean plate stratigraphy and polarity of subduction in western North America | GSA Bulletin | GeoScienceWorld

High-resolution integrated conodont biostratigraphy and carbon isotope (δ13Ccarb) chemostratigraphy of the Ordovician of Sweden, with comparison to South China and North America

Shape-corrected, volume-weighted mean diameter: A robust method for reliable 3-D mean diameter calculations from 2-D datasets | GSA Bulletin | GeoScienceWorld

A 400-k.y. perspective on arc volcanism: An exceptional explosive eruption record from Central Mexico | GSA Bulletin | GeoScienceWorld

Identifying and quantifying stratigraphic disconformities in shale: An example from the Upper Devonian of the Appalachian Basin | GSA Bulletin | GeoScienceWorld

Isotopic constraints on the peak of the Early Paleozoic Icehouse | GSA Bulletin | GeoScienceWorld

July 2025 Issue

Lithium isotopes of the Peace River Arch in the Western Canada Sedimentary Basin

A revised chronostratigraphy of the Triassic-Jurassic Moenave Formation, western USA: Implications for timing of continental climate change

Multiphase deformation of a multilayered salt giant: Salt tectonics in the Levant Basin

Implications for the Paleozoic assembly of Arctic Alaska and the Mesozoic opening of the Amerasia Basin

Quaternary Profiles and River Chemistry in the Danghe Watershed

Tectonic implications of transitional melting regimes from petrological, geochronological, and compositional characterization of the ophiolitic Seventymile terrane, Alaska, USA | Geosphere | GeoScienceWorld

Testing a northern Appalachian source for the Catskill-Pocono clastic wedge: Reconstructing Devonian–Mississippian sediment routing using detrital zircon and monazite geo-thermochronology

Effect of 3-D fault geometry on synextensional sedimentation around a Miocene metamorphic core complex, eastern California−western Arizona, USA | Geosphere | GeoScienceWorld

Spilling into confinement: Submarine canyon-confined overbank processes and architecture | Geosphere | GeoScienceWorld

A gigantic Miocene landslide in the Wasatch Range, Utah, USA | Geosphere | GeoScienceWorld

Life cycle of a giant A-type batholith in the Proterozoic and its link to mineral resources: The Pikes Peak system, Colorado | Geosphere | GeoScienceWorld

CALL FOR PAPERS

October 2025 Issue

Spatiotemporal evolution of a newly recognized Late Cretaceous fold-and-thrust belt in the western slope of southern Peru: Evidence for selective inversion and hybrid thick- and thin-skinned shortening | Geosphere | GeoScienceWorld

Landsliding follows signatures of wildfire history and vegetation regrowth in a steep coastal shrubland | Geosphere | GeoScienceWorld

Call for Papers

August 2025 Issue | 20th Anniversary Edition

Co-inversion of multiple thermochronometers and a paleomagnetic thermometer at a Columbia River flood basalt feeder dike (Oregon, USA) demonstrates the sensitivity of thermal history results to diverse data constraints | Geosphere | GeoScienceWorld

Structural styles and kinematic evolution of the Front Ranges of the Southern Canadian Rockies

Sedimentary stratigraphy and structure of the eastern Central Valley, California, USA: Implications for Cenozoic tectonics of the Sierra Nevada

Crustal-to-mantle shifting in SiO2-rich upper crustal magmas through zircon and bulk rock compositions in the Famatinian arc, Argentina

High-resolution three-dimensional seismic imaging reveals structure and slip rate of the Hosgri fault zone offshore Point Sal

June 2025 Issue

Incision history of the San Juan River, USA, in the past 1.2 million years

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GSA Position Statement | Improving Natural Hazards Policies and Response through Geoscience

LAST CALL: Geosciences Congressional Visits Day | 9–10 September 2025

Geosciences Congressional Visits Day | 9–10 September 2025

GSA Science Policy Newsletter: May Edition

Forest-floor burial in 1507 by the largest Mount Rainier lahar of the past millennium | Geology | GeoScienceWorld

Seismic evidence of widespread sediments beneath the Greenland Ice Sheet

Active faulting in the upper plate of the Himalayas: Paleoseismic insights from the Western Nepal fault system | Geosphere | GeoScienceWorld

Zinc isotope constraints on the cycling of carbon in the Bermuda mantle source | Geology | GeoScienceWorld

Potentially induced earthquakes in Oklahoma, USA: Links between wastewater injection and the 2011 Mw 5.7 earthquake sequence | Geology | GeoScienceWorld

Control of landslide volume and hazard by glacial stratigraphic architecture, northwest Washington State, USA | Geology | GeoScienceWorld

Volcanism in the Comoros Archipelago, Madagascar, and the East African Rift: What is the link? | Geosphere | GeoScienceWorld

Cyberseminars | USGS National Water Availability Assessment | Cuahsi.org

When Glaciers Move: Understanding the Blatten Landslide

GSA Bulletin | Products and dynamics of lava-snow explosions: The 16 March 2017 explosion at Mount Etna, Italy

GSA and GSA Foundation Announce Record Support for the Geosciences

GSA Grad Student Research Grants

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Learn More: On To the Future

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Fabian Cerón Hardy Research Paper | Recent GSA Graduate Student Research Grant Recipient

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The Physical Geography and Geology of the Driftless Area – GSA Online Store

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GSA Honors Mountain Press’s Legacy

Roadside Geology of Texas, Third Edition – GSA Online Store

Texas Rocks! A Guide to Geologic Sites in the Lone Star State – GSA Online Store

Regional Geology of Mount Diablo, California: Its Tectonic Evolution on the North America Plate Boundary

From Coastal Geomorphology to Magmatism: Guides to GSA Connects 2024 Field Trips in Southern California and Beyond

Texas ROCKS! Book Review

Virtue of Fieldwork in Volcanology, Sedimentology, Structural Geology.

Paul Brandes Events | Grab the book Michigan Rocks! A Guide to Geologic Sites in the Great Lakes State

Iceland: The Formation and Evolution of a Volcanic Island

Roadside Geology of Colorado | Back in Stock

Texas Rocks! A Guide to Geologic Sites in the Lone Star State

Zircon U-Pb-Hf isotope evidence from gabbros of the Summit igneous complex for a latest Jurassic rift through the southern Sierra Nevada arc crust, California, USA

Architecture and deep laccolithic inflation of the short-lived (~15 m.y.) Luzon arc near Taiwan—Multiscale integration of marine seismic imaging and outcrop data from the deformed onshore arc

Geology Underfoot in Yosemite National Park

Roadside Geology of Arizona

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The Lost Drawings | John Clerk of Eldin and James Hutton

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GSA Thompson Field Forum – Day 5 Recap

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Nebraska Sandhills, United States

Montezuma Well, Arizona

Shasta Caverns, California

Lal Lal Falls, Victoria, Australia

Stansbury Island, Utah

Lake Sammamish Sunken Forest, Washington

New Castle of Manzanares el Real, Madrid, Spain

Newnan’s Lake, Florida

Tensleep Canyon, Wyoming

San Antonio River Basin, Texas

Cape Lookout

Emerald Lake, Colorado

New York Harbor

Alberca de Los Espinos

San Bruno Mountain

Michael Manga — Geology Bites

Anat Shahar — Geology Bites

Keith Klepeis — Geology Bites

Tom Herring — Geology Bites

Jiri Zak — Geology Bites

Claudio Faccenna on the Dynamics of Subduction Zones

Cees Van Staal on the Origin of the Appalachians

Andreas Fichtner on the Frontiers of Seismic Imaging

Renee Tamblyn on the Origin of Continents

Folarin Kolawole on Continental Rifting

Building Careers, Breaking Barriers: SGT Funds Six On To the Future Scholars

From Museums to Meetings: A Graduate Student’s Journey in Geoscience and Advocacy

From Curiosity to Career: How GSA and OTF Shaped My Paleontology Path

Geology Bites: Mike Hudec on Salt Tectonics