How does lithium become concentrated in clay deposits? A new #GSABulletin study uses millimeter-scale hyperspectral core imaging to map lithium and clay minerals, identifying montmorillonite as the primary Li-bearing mineral and revealing cyclic Li enrichment: geosociety.co/Mei-et-al
Image: Fig 4
Image: Fig 4
October 31, 2026 at 8:00 PM
How does lithium become concentrated in clay deposits? A new #GSABulletin study uses millimeter-scale hyperspectral core imaging to map lithium and clay minerals, identifying montmorillonite as the primary Li-bearing mineral and revealing cyclic Li enrichment: geosociety.co/Mei-et-al
Image: Fig 4
Image: Fig 4
How does river shape control contaminant storage? A #GSABulletin study of the PCB-contaminated Housatonic River finds floodplain accessibility is the first-order control, while more sinuous reaches store ~2.5× more surface PCBs: geosociety.co/river-contaminants
Image: Fig 1
#Geomorphology #PCBs
Image: Fig 1
#Geomorphology #PCBs
October 29, 2026 at 2:01 PM
How does river shape control contaminant storage? A #GSABulletin study of the PCB-contaminated Housatonic River finds floodplain accessibility is the first-order control, while more sinuous reaches store ~2.5× more surface PCBs: geosociety.co/river-contaminants
Image: Fig 1
#Geomorphology #PCBs
Image: Fig 1
#Geomorphology #PCBs
How does fractured shale fail under shear? A new #GSABulletin study combines acoustic, optical & mechanical monitoring to reveal anisotropic damage evolution and four shear-fracture mechanisms.
Read more: geosociety.co/Zheng-et-al
Image: Figure 10 from the paper.
#Geology #Shale #Geomechanics
Read more: geosociety.co/Zheng-et-al
Image: Figure 10 from the paper.
#Geology #Shale #Geomechanics
October 25, 2026 at 4:00 PM
How does fractured shale fail under shear? A new #GSABulletin study combines acoustic, optical & mechanical monitoring to reveal anisotropic damage evolution and four shear-fracture mechanisms.
Read more: geosociety.co/Zheng-et-al
Image: Figure 10 from the paper.
#Geology #Shale #Geomechanics
Read more: geosociety.co/Zheng-et-al
Image: Figure 10 from the paper.
#Geology #Shale #Geomechanics
New paper in #GSABulletin (@geosociety.bsky.social): the Carboneras #Fault, SE Spain, as a case study of how mature faults record superimposed deformation phases with differing kinematics over >20 Myr, from late Oligocene to Pleistocene.
doi.org/10.1130/B390...
#Geology #Tectonics #GSAPubs
doi.org/10.1130/B390...
#Geology #Tectonics #GSAPubs
October 25, 2026 at 6:37 PM
New paper in #GSABulletin (@geosociety.bsky.social): the Carboneras #Fault, SE Spain, as a case study of how mature faults record superimposed deformation phases with differing kinematics over >20 Myr, from late Oligocene to Pleistocene.
doi.org/10.1130/B390...
#Geology #Tectonics #GSAPubs
doi.org/10.1130/B390...
#Geology #Tectonics #GSAPubs
Could cone-in-cone structures record ancient earthquakes? New evidence from Morocco links CICs to volcanic seismicity and fluid escape, supporting their use as an underutilized paleoseismic proxy.
geosociety.co/Wei-Zeng-et-al
Image: Figure 1 from the paper.
#Geology #Paleoseismology #GSABulletin
geosociety.co/Wei-Zeng-et-al
Image: Figure 1 from the paper.
#Geology #Paleoseismology #GSABulletin
October 24, 2026 at 8:00 PM
Could cone-in-cone structures record ancient earthquakes? New evidence from Morocco links CICs to volcanic seismicity and fluid escape, supporting their use as an underutilized paleoseismic proxy.
geosociety.co/Wei-Zeng-et-al
Image: Figure 1 from the paper.
#Geology #Paleoseismology #GSABulletin
geosociety.co/Wei-Zeng-et-al
Image: Figure 1 from the paper.
#Geology #Paleoseismology #GSABulletin
How does deep-water exchange through the Yucatán Channel shape the Gulf of Mexico?
Read “Evolution of North Atlantic Deep Water inflow through the Yucatán Channel recorded by an obstacle-controlled contourite drift” in #GSABulletin: geosociety.co/Lin-Ng-et-al
Image: Fig 14
Read “Evolution of North Atlantic Deep Water inflow through the Yucatán Channel recorded by an obstacle-controlled contourite drift” in #GSABulletin: geosociety.co/Lin-Ng-et-al
Image: Fig 14
October 23, 2026 at 2:01 PM
How does deep-water exchange through the Yucatán Channel shape the Gulf of Mexico?
Read “Evolution of North Atlantic Deep Water inflow through the Yucatán Channel recorded by an obstacle-controlled contourite drift” in #GSABulletin: geosociety.co/Lin-Ng-et-al
Image: Fig 14
Read “Evolution of North Atlantic Deep Water inflow through the Yucatán Channel recorded by an obstacle-controlled contourite drift” in #GSABulletin: geosociety.co/Lin-Ng-et-al
Image: Fig 14
Which matters more in landscape evolution: tectonics or climate? New evidence from the Taiyuan Basin in the central Shanxi Rift, North China, suggests that, during the Early Pleistocene, climate had the upper hand.
🔗 geosociety.co/46Tecmu
Image: Figure 8 from the paper.
#GSABulletin
🔗 geosociety.co/46Tecmu
Image: Figure 8 from the paper.
#GSABulletin
October 4, 2026 at 2:00 PM
Which matters more in landscape evolution: tectonics or climate? New evidence from the Taiyuan Basin in the central Shanxi Rift, North China, suggests that, during the Early Pleistocene, climate had the upper hand.
🔗 geosociety.co/46Tecmu
Image: Figure 8 from the paper.
#GSABulletin
🔗 geosociety.co/46Tecmu
Image: Figure 8 from the paper.
#GSABulletin
Read the latest in geoscience research from #GSABulletin
The September/October issue is now available online: geosociety.co/Bulletin_Sept-Oct26
#GSAPubs #Geoscience
Cover: Proterozoic rocks of the southern Mazatzal Mountains, south-central Arizona, USA. Photo by Steve Skotnicki.
The September/October issue is now available online: geosociety.co/Bulletin_Sept-Oct26
#GSAPubs #Geoscience
Cover: Proterozoic rocks of the southern Mazatzal Mountains, south-central Arizona, USA. Photo by Steve Skotnicki.
September 16, 2026 at 2:00 PM
Read the latest in geoscience research from #GSABulletin
The September/October issue is now available online: geosociety.co/Bulletin_Sept-Oct26
#GSAPubs #Geoscience
Cover: Proterozoic rocks of the southern Mazatzal Mountains, south-central Arizona, USA. Photo by Steve Skotnicki.
The September/October issue is now available online: geosociety.co/Bulletin_Sept-Oct26
#GSAPubs #Geoscience
Cover: Proterozoic rocks of the southern Mazatzal Mountains, south-central Arizona, USA. Photo by Steve Skotnicki.
Did climate shape the earliest animal ecosystems? New #GSABulletin research identifies two Ediacaran icehouse intervals that coincided with major biosphere turnovers, suggesting climate-life coupling before the Cambrian: geosociety.co/Wong_et_al
Image: Figure 3 from the paper
Image: Figure 3 from the paper
September 14, 2026 at 2:00 PM
Did climate shape the earliest animal ecosystems? New #GSABulletin research identifies two Ediacaran icehouse intervals that coincided with major biosphere turnovers, suggesting climate-life coupling before the Cambrian: geosociety.co/Wong_et_al
Image: Figure 3 from the paper
Image: Figure 3 from the paper
New in #GSABulletin: Geochemical, isotopic, and ⁴⁰Ar/³⁹Ar data from Antarctica reveal a two-stage magmatic history for the Granite Harbour Intrusives Suite, offering new insights into the Ross orogeny and Gondwana's Paleo-Pacific margin.
🔗 geosociety.co/Yasar_et_al
Image: Figure 12 from the paper
🔗 geosociety.co/Yasar_et_al
Image: Figure 12 from the paper
September 12, 2026 at 2:05 PM
New in #GSABulletin: Geochemical, isotopic, and ⁴⁰Ar/³⁹Ar data from Antarctica reveal a two-stage magmatic history for the Granite Harbour Intrusives Suite, offering new insights into the Ross orogeny and Gondwana's Paleo-Pacific margin.
🔗 geosociety.co/Yasar_et_al
Image: Figure 12 from the paper
🔗 geosociety.co/Yasar_et_al
Image: Figure 12 from the paper
What happened to lakes during the #PETM? A new #GSABulletin study shows extreme warming transformed a lake ecosystem in northeastern China, providing insight into how modern lakes may respond to climate change: geosociety.co/Wu_et_al
#Paleoclimate #Geology
Image: Figure 9 from the paper
#Paleoclimate #Geology
Image: Figure 9 from the paper
September 10, 2026 at 2:00 PM
What happened to lakes during the #PETM? A new #GSABulletin study shows extreme warming transformed a lake ecosystem in northeastern China, providing insight into how modern lakes may respond to climate change: geosociety.co/Wu_et_al
#Paleoclimate #Geology
Image: Figure 9 from the paper
#Paleoclimate #Geology
Image: Figure 9 from the paper
Could Carolina Bays signal natural hydrogen seepage? A new #GSABulletin study found evidence linking these southeastern U.S. wetlands to molecular hydrogen, with implications for future carbon-free energy exploration.
🔗 geosociety.co/Stefanou_Milewski
#NaturalHydrogen #CleanEnergy
Image: Figure 1
🔗 geosociety.co/Stefanou_Milewski
#NaturalHydrogen #CleanEnergy
Image: Figure 1
September 7, 2026 at 2:01 PM
Could Carolina Bays signal natural hydrogen seepage? A new #GSABulletin study found evidence linking these southeastern U.S. wetlands to molecular hydrogen, with implications for future carbon-free energy exploration.
🔗 geosociety.co/Stefanou_Milewski
#NaturalHydrogen #CleanEnergy
Image: Figure 1
🔗 geosociety.co/Stefanou_Milewski
#NaturalHydrogen #CleanEnergy
Image: Figure 1
New in #GSABulletin: What can molecular fossils reveal about Earth’s greatest mass extinction?
Molecular fossils in the Dolomites show that shallow marine ecosystems experienced more variable environmental changes than deeper settings.
Read the article: geosociety.co/Buchwald_et_al
Image: Fig. 4
Molecular fossils in the Dolomites show that shallow marine ecosystems experienced more variable environmental changes than deeper settings.
Read the article: geosociety.co/Buchwald_et_al
Image: Fig. 4
September 5, 2026 at 2:00 PM
New in #GSABulletin: What can molecular fossils reveal about Earth’s greatest mass extinction?
Molecular fossils in the Dolomites show that shallow marine ecosystems experienced more variable environmental changes than deeper settings.
Read the article: geosociety.co/Buchwald_et_al
Image: Fig. 4
Molecular fossils in the Dolomites show that shallow marine ecosystems experienced more variable environmental changes than deeper settings.
Read the article: geosociety.co/Buchwald_et_al
Image: Fig. 4
How did sea level change during the Last Interglacial?
A new #GSABulletin study refines the Pleistocene history of San Salvador Island, Bahamas, revealing detailed records of MIS 5e sea-level rise and fall and carbonate-platform response to climate change.
geosociety.co/Kerans_et_al
Image: Fig. 6
A new #GSABulletin study refines the Pleistocene history of San Salvador Island, Bahamas, revealing detailed records of MIS 5e sea-level rise and fall and carbonate-platform response to climate change.
geosociety.co/Kerans_et_al
Image: Fig. 6
September 1, 2026 at 10:00 PM
How did sea level change during the Last Interglacial?
A new #GSABulletin study refines the Pleistocene history of San Salvador Island, Bahamas, revealing detailed records of MIS 5e sea-level rise and fall and carbonate-platform response to climate change.
geosociety.co/Kerans_et_al
Image: Fig. 6
A new #GSABulletin study refines the Pleistocene history of San Salvador Island, Bahamas, revealing detailed records of MIS 5e sea-level rise and fall and carbonate-platform response to climate change.
geosociety.co/Kerans_et_al
Image: Fig. 6
New in #GSABulletin: What do ancient volcanic ash layers reveal about the Mesoproterozoic evolution of Laurentia?
Isenburg et al. investigate the tectonic and volcanic processes that shaped the Picuris orogeny nearly 1.5 billion years ago: geosociety.co/Isenburg_et_al
Image: Fig. 11
Isenburg et al. investigate the tectonic and volcanic processes that shaped the Picuris orogeny nearly 1.5 billion years ago: geosociety.co/Isenburg_et_al
Image: Fig. 11
August 30, 2026 at 2:00 PM
New in #GSABulletin: What do ancient volcanic ash layers reveal about the Mesoproterozoic evolution of Laurentia?
Isenburg et al. investigate the tectonic and volcanic processes that shaped the Picuris orogeny nearly 1.5 billion years ago: geosociety.co/Isenburg_et_al
Image: Fig. 11
Isenburg et al. investigate the tectonic and volcanic processes that shaped the Picuris orogeny nearly 1.5 billion years ago: geosociety.co/Isenburg_et_al
Image: Fig. 11
Was ocean anoxia really the main driver of the Late Devonian mass extinction?
New #GSABulletin research suggests anoxia expanded but may not fully explain the Frasnian–Famennian biotic crisis.
geosociety.co/Edwards_et_al
#Paleontology #EarthHistory #Geochemistry
Image: Figure 8 from the paper.
New #GSABulletin research suggests anoxia expanded but may not fully explain the Frasnian–Famennian biotic crisis.
geosociety.co/Edwards_et_al
#Paleontology #EarthHistory #Geochemistry
Image: Figure 8 from the paper.
August 16, 2026 at 9:00 PM
Was ocean anoxia really the main driver of the Late Devonian mass extinction?
New #GSABulletin research suggests anoxia expanded but may not fully explain the Frasnian–Famennian biotic crisis.
geosociety.co/Edwards_et_al
#Paleontology #EarthHistory #Geochemistry
Image: Figure 8 from the paper.
New #GSABulletin research suggests anoxia expanded but may not fully explain the Frasnian–Famennian biotic crisis.
geosociety.co/Edwards_et_al
#Paleontology #EarthHistory #Geochemistry
Image: Figure 8 from the paper.
How completely do sedimentary records capture past climate change?
New #GSABulletin research reveals how Antarctic ice responded to past warming—an important analog for future climate change.
Read more: geosociety.co/Tasistro-Hart_et_al
#Paleoclimate #Antarctica
Image: Figure 4 from the paper.
New #GSABulletin research reveals how Antarctic ice responded to past warming—an important analog for future climate change.
Read more: geosociety.co/Tasistro-Hart_et_al
#Paleoclimate #Antarctica
Image: Figure 4 from the paper.
August 15, 2026 at 2:00 PM
How completely do sedimentary records capture past climate change?
New #GSABulletin research reveals how Antarctic ice responded to past warming—an important analog for future climate change.
Read more: geosociety.co/Tasistro-Hart_et_al
#Paleoclimate #Antarctica
Image: Figure 4 from the paper.
New #GSABulletin research reveals how Antarctic ice responded to past warming—an important analog for future climate change.
Read more: geosociety.co/Tasistro-Hart_et_al
#Paleoclimate #Antarctica
Image: Figure 4 from the paper.
New in #GSABulletin: New U-Pb, Sm-Nd & cooling ages reveal the Siskiyou and Nevadan orogenies were distinct Jurassic events in the Klamath Mountains, with peak metamorphism linked to transcrustal magma transport and slab breakoff.
🔗 geosociety.co/Barnes_et_al
Image: Figure 1 from the paper.
🔗 geosociety.co/Barnes_et_al
Image: Figure 1 from the paper.
August 13, 2026 at 8:00 PM
New in #GSABulletin: New U-Pb, Sm-Nd & cooling ages reveal the Siskiyou and Nevadan orogenies were distinct Jurassic events in the Klamath Mountains, with peak metamorphism linked to transcrustal magma transport and slab breakoff.
🔗 geosociety.co/Barnes_et_al
Image: Figure 1 from the paper.
🔗 geosociety.co/Barnes_et_al
Image: Figure 1 from the paper.
New in #GSABulletin: Machine learning meets deep Earth science
By combining seismic velocities and density, researchers predict lithosphere composition—revealing new insights into the South China Block and challenging long-held ideas about the mantle.
🔗 geosociety.co/Yang_et_al26
Image: Fig 10
By combining seismic velocities and density, researchers predict lithosphere composition—revealing new insights into the South China Block and challenging long-held ideas about the mantle.
🔗 geosociety.co/Yang_et_al26
Image: Fig 10
August 12, 2026 at 2:00 PM
New in #GSABulletin: Machine learning meets deep Earth science
By combining seismic velocities and density, researchers predict lithosphere composition—revealing new insights into the South China Block and challenging long-held ideas about the mantle.
🔗 geosociety.co/Yang_et_al26
Image: Fig 10
By combining seismic velocities and density, researchers predict lithosphere composition—revealing new insights into the South China Block and challenging long-held ideas about the mantle.
🔗 geosociety.co/Yang_et_al26
Image: Fig 10
A powerful earthquake struck western Colombia early Monday, causing widespread shaking across the region.
This is a reminder of the remarkably complex tectonics beneath northwestern South America. Learn more about the geology of this region in this #GSABulletin article: geosociety.co/Leon_et_al
This is a reminder of the remarkably complex tectonics beneath northwestern South America. Learn more about the geology of this region in this #GSABulletin article: geosociety.co/Leon_et_al
August 11, 2026 at 4:02 PM
A powerful earthquake struck western Colombia early Monday, causing widespread shaking across the region.
This is a reminder of the remarkably complex tectonics beneath northwestern South America. Learn more about the geology of this region in this #GSABulletin article: geosociety.co/Leon_et_al
This is a reminder of the remarkably complex tectonics beneath northwestern South America. Learn more about the geology of this region in this #GSABulletin article: geosociety.co/Leon_et_al
New in #GSABulletin: What can tiny detrital garnet grains reveal about the geologic evolution of East Antarctica?
This study reconstructs the continent’s metamorphic history, showing how garnet preserves key stages of metamorphism.
geosociety.co/Verhaert_et_al
Image: Fig 2 from the paper.
This study reconstructs the continent’s metamorphic history, showing how garnet preserves key stages of metamorphism.
geosociety.co/Verhaert_et_al
Image: Fig 2 from the paper.
August 9, 2026 at 2:00 PM
New in #GSABulletin: What can tiny detrital garnet grains reveal about the geologic evolution of East Antarctica?
This study reconstructs the continent’s metamorphic history, showing how garnet preserves key stages of metamorphism.
geosociety.co/Verhaert_et_al
Image: Fig 2 from the paper.
This study reconstructs the continent’s metamorphic history, showing how garnet preserves key stages of metamorphism.
geosociety.co/Verhaert_et_al
Image: Fig 2 from the paper.
“Black Phytokarst from Hell” remains my favorite title for a scientific paper. https://pubs.geoscienceworld.org/gsabulletin/article-abstract/84/7/2351/201460/Black-Phytokarst-from-Hell-Cayman-Islands-British#.XjS36KQR68g.twitter
November 23, 2024 at 7:35 PM
“Black Phytokarst from Hell” remains my favorite title for a scientific paper. https://pubs.geoscienceworld.org/gsabulletin/article-abstract/84/7/2351/201460/Black-Phytokarst-from-Hell-Cayman-Islands-British#.XjS36KQR68g.twitter
From #GSA:
"A new study refines the timeline of the End-Triassic Mass Extinction using cutting-edge Bayesian modeling, C-isotope chemostratigraphy, and zircon U-Pb dating in the Moenave Formation (Colorado Plateau, USA)"
#EarthHistory
#MassExtinction
#Geochronology
#ClimateCrisis
#GSABulletin
🧪⚒️
"A new study refines the timeline of the End-Triassic Mass Extinction using cutting-edge Bayesian modeling, C-isotope chemostratigraphy, and zircon U-Pb dating in the Moenave Formation (Colorado Plateau, USA)"
#EarthHistory
#MassExtinction
#Geochronology
#ClimateCrisis
#GSABulletin
🧪⚒️
A revised chronostratigraphy of the Triassic-Jurassic Moenave Formation, western USA: Implications for timing of continental climate change | GSA Bulletin | GeoScienceWorld
pubs.geoscienceworld.org
June 20, 2025 at 11:04 PM
From #GSA:
"A new study refines the timeline of the End-Triassic Mass Extinction using cutting-edge Bayesian modeling, C-isotope chemostratigraphy, and zircon U-Pb dating in the Moenave Formation (Colorado Plateau, USA)"
#EarthHistory
#MassExtinction
#Geochronology
#ClimateCrisis
#GSABulletin
🧪⚒️
"A new study refines the timeline of the End-Triassic Mass Extinction using cutting-edge Bayesian modeling, C-isotope chemostratigraphy, and zircon U-Pb dating in the Moenave Formation (Colorado Plateau, USA)"
#EarthHistory
#MassExtinction
#Geochronology
#ClimateCrisis
#GSABulletin
🧪⚒️
When did one of our early ape relatives live?
New #GSABulletin research refines the age of the Middle Miocene Napudet fossil site in Kenya—the home of Nyanzapithecus alesi, an exceptionally preserved infant ape skull.
Read more: geosociety.co/Cox_et_al
Image: Fig 1 from the paper
New #GSABulletin research refines the age of the Middle Miocene Napudet fossil site in Kenya—the home of Nyanzapithecus alesi, an exceptionally preserved infant ape skull.
Read more: geosociety.co/Cox_et_al
Image: Fig 1 from the paper
August 7, 2026 at 2:00 PM
When did one of our early ape relatives live?
New #GSABulletin research refines the age of the Middle Miocene Napudet fossil site in Kenya—the home of Nyanzapithecus alesi, an exceptionally preserved infant ape skull.
Read more: geosociety.co/Cox_et_al
Image: Fig 1 from the paper
New #GSABulletin research refines the age of the Middle Miocene Napudet fossil site in Kenya—the home of Nyanzapithecus alesi, an exceptionally preserved infant ape skull.
Read more: geosociety.co/Cox_et_al
Image: Fig 1 from the paper
New #GSABulletin research posits that porphyritic cobbles in the Cenomanian Frontier Formation in Bighorn basin (Wyoming, USA) are derived from ca. 92–104 Ma porphyritic intrusions now exposed in the Beartooth Mountains.
Read the paper: geosociety.co/Thacker_et_al
Image: Figure 14 from the paper.
Read the paper: geosociety.co/Thacker_et_al
Image: Figure 14 from the paper.
August 6, 2026 at 4:00 PM
New #GSABulletin research posits that porphyritic cobbles in the Cenomanian Frontier Formation in Bighorn basin (Wyoming, USA) are derived from ca. 92–104 Ma porphyritic intrusions now exposed in the Beartooth Mountains.
Read the paper: geosociety.co/Thacker_et_al
Image: Figure 14 from the paper.
Read the paper: geosociety.co/Thacker_et_al
Image: Figure 14 from the paper.