New research in #GSABulletin uses machine learning + mineral chemistry to uncover how water-rich mantle sources helped generate the Emeishan large igneous province.
Read more: geosociety.co/Wei_et_al
#MachineLearning #MantleProcesses #GSAPubs
Image: Figure 5 from the paper.
New research in #GSABulletin explores how serpentinized mantle shapes subduction behavior and water transport in the Mariana Trench.
Read more: geosociety.co/F_Li_et_al
#SubductionZones #Geodynamics #GSAPubs
Image: Figure 11 from the paper.
A new #GSABulletin study of rift-related volcanism shows that 3-D fault structure controls magma pathways, eruption volumes, and whether melts evolve to felsic or stay mafic.
Read more: geosociety.co/Haproff_et_al
#RiftTectonics #BasinAndRange #GSAPubs
Image: Figure 1 from the paper.
New research in #GSABulletin explores how magma moves through shallow, faulted sediments—using exceptional coastal exposures in the western Pyrenees.
Read more: geosociety.co/Agirrezabala_Sarrionandia
#Volcanology #StructuralGeology #GSAPubs
Image: Figure 4 from the paper.
A new study in #GSABulletin from the Gulf of Corinth, Greece, shows that lithology can outweigh tectonics in controlling sediment grain size—and what ultimately gets preserved in hanging-wall stratigraphy.
Read the full article: geosociety.co/DecodingControls
Image: Figure 12 from the paper.
New #GSABulletin research by Levy et al. shows silica-rich water tracks in the McMurdo Dry Valleys record ongoing aluminosilicate weathering—highlighting implications for warming climates and polar biogeochemistry.
🔗 geosociety.co/46TSijo
Image: Figure 2 from the paper.
A new #GSABulletin study reveals 15–27 major (~M7) earthquakes in the past 60,000 years along the Cañada David detachment in Baja California—evidence that low-angle normal faults can host powerful surface-rupturing events.
Read the paper: geosociety.co/40e3eog
Image: Figure 16 from the paper.
New #GSABulletin research finds that relatively small, shallow faults beneath Seattle may rupture more often than we thought.
This work is gaining traction on MSN, highlighting the importance of such research for assessing earthquake risk in urban areas.
Read the paper: geosociety.co/Angster_et_al
By integrating field-based sedimentological observations with machine learning analysis of bulk grain-size data, researchers found that Paleogene loess deposition in the western USA began earlier than previously thought.
Read paper in #GSABulletin: geosociety.co/Guo_et_al
Image: Fig 3 from paper
How does magma move beneath slow-spreading backarc ridges?
A new #GSABulletin paper reveals a reversed plumbing systembeneath the Marsili seamount—the largest submarine volcano in the Euro-Mediterranean.
Read more: geosociety.co/Gennaro_et_al
#Volcanology #EarthScience
Image: Fig 1 from the paper
How do orogenic plateaus cool before they break apart?
New #GSABulletin research shows that pre-extensional cooling of the Nevadaplano (Nevada–Utah, USA) was driven by lithospheric refrigeration during flat-slab subduction, not erosion.
Article: geosociety.co/Long_et_al
Image: Fig 2 from paper
New in #GSABulletin: M.N. Ducea and colleagues explore the role of crustal magmatism in the formation and the evolution of orogenic plateaus.
Read the paper and learn more here: geosociety.co/Ducea_et_al
#Geochemistry #Petrology #Tectonics #GSAPubs
Image: Figure 17 from the paper.
New in #GSABulletin: Carbonate U/Th ages confirm the Mono Basin excursion as the Laschamps geomagnetic excursion
Full article: geosociety.co/Ali_el_al
#Geochronology #Paleomagnetism #QuaternaryGeology #GSAPubs
Image: Fig 1 from paper
How did ecosystems on the Gulf Coast respond to Paleocene warming? A new #GSABulletin study uses sedimentology and geochemistry from Texas wells to track climate and ecological changes during the Selandian-Thanetian Transition Event.
Article: geosociety.co/Sharma_et_al
Image: Fig 1 from paper
A new #GSABulletin study investigates the timing and duration of metamorphism and magmatism during ancient mountain building. Were the mountains that formed 1.8 billion years ago similar to modern mountain belts?
Find out more in the paper: geosociety.co/Roy_et_al
Image: Fig 2 from the paper.
What controls gravel distribution in foreland basins over millions of years? This #GSABulletin study integrates provenance, tectonics, climate, and basin dynamics to build a predictive model from the Kuqa Foreland Basin, Northwest China.
Read the full article: geosociety.co/Zhang_et_al
Image: Fig 4
🌕 New research from the Moon’s farside! Chang’e-6 samples reveal that space weathering on the lunar farside differs significantly from the nearside, influenced by solar wind energy and local magnetic anomalies.
Read the paper in #GSABulletin: geosociety.co/Li_et_al_25
Image: Fig. 9 from the paper.
How did Variscan granites form in NW Iberia?
This new #GSABulletin study identifies two distinct magmatic pulses driven by crustal melting, fertility loss, and later lithospheric delamination.
Read the article: geosociety.co/Gonzalez-Menendez_et_al
Image: Figure 16 from the paper.
Tree-ring records reveal the positive feedback between debris flow and climate warming in a periglacial watershed, Eastern Himalaya Syntaxis.
Read the full article: geosociety.co/Li_et_al
#ClimateChange #Himalayas #GSABulletin #GSAPubs
Image: Fig 1 from the paper.
Catch up on the latest geoscience research in the January/February #GSABulletin issue: geosociety.co/GSABulletin
#GSAPubs #Geology
Cover: Rocher Percé, a famous “pierced rock” in the Gulf of Saint Lawrence on the tip of the Gaspé Peninsula in Québec, Canada, off Percé Bay. Photo by Morgann Perrot.
Impact craters can act as natural sediment traps, preserving records of ancient environments.
A new study of the Decorah impact structure (Iowa, USA) shows how resurge deposits can be used to estimate target water depth.
Read the paper in #GSABulletin: geosociety.co/Ormo_et_al
Image: Fig 1
A new study uncovers how the double subduction system in the Molucca Sea formed and evolved. Plate motion history and geodynamic modeling reveal the origins of its unusual asymmetric slab geometry.
Read more: geosociety.co/Chen_et_al
#Geodynamics #Tectonics #GSABulletin
Image: Fig 5
Petrochronology of the East Pond Metamorphic Suite eclogite, Baie Verte Peninsula, Newfoundland, Canada
This study uses petrochronology to unravel the tectonic history of the Early Paleozoic Laurentian margin.
Read the paper in #GSABulletin: geosociety.co/Scorsolini_et_al
Image: Fig. 1
New research uncovers fresh geological insights into Brazil’s 40-km-wide Araguainha impact structure.
Explore the full article: geosociety.co/48Eyhxc
#ImpactCratering #Geology #Tectonics #Brazil #GSABulletin #GSAPubs
Image: Figure 14 from the paper.
A new paper redefines transform faults. Read “Transform fault system: A microplate-based perspective on transform faults” in #GSABulletin.
Read the full paper by Sanzhong Li et al.: geosociety.co/4a4kTVr
#Tectonics #GlobalTectonics #StructuralGeology #GSAPubs
Image: Figure 1 from the paper.
New research uncovers how a laterally mixed Pennsylvanian shelf evolved in the Sacramento Mountains.
Read the full article in #GSABulletin: geosociety.co/4aBj6HA
#Geology #Sedimentology #Stratigraphy #Paleozoic #GSAPubs
Image: Figure 26 from the paper.
New #GSABulletin research shows magnetite-apatite deposits in the New Jersey Highlands formed during Grenvillian orogen-scale Fe-P-(Ti) mineralization. Zircon U-Pb geochronology reveals a long-lived magmatic system (ca. 1074–905 Ma).
Read more: geosociety.co/49Yzu4O
Image: Figure 18 from the paper.
New in #GSABulletin: The 23 January 2024 Mw 7.0 Wushi earthquake in the SW Tian Shan (China) produced no surface rupture. Instead, a Mw 5.7 aftershock 1 week later generated an ~4-km-long surface rupture with >1 m vertical offset.
Read the full article: geosociety.co/4oxBdSj
How does stress shape frac efficiency in CBM wells? New #GSABulletin research from China’s Qinshui Basin shows fracture pressure hinges on vertical–horizontal stress balance, and seams with lower horizontal stress or tensile strength fracture more easily.
Read the full article: geosociety.co/47ZdTqn
How did fluorine drive gold-tellurium remobilization in a VMS system? New #GSABulletin research reveals Late Triassic overprinting of Silurian deposits in SW China—offering fresh clues for mineral exploration.
Read more: geosociety.co/44d8URA
#EconomicGeology #Geochemistry #MineralResources
