The Geological Society of America (GSA)
@geosociety.bsky.social
The Geological Society of America (GSA) unites a diverse community of geoscientists in a common purpose to study the mysteries of our planet (and beyond) and share scientific findings.
EarthCache Spotlight: New Castle of Manzanares el Real, Madrid!
A medieval fortress in La Pedriza with stunning architecture and rich geology.
📍 Madrid, Spain
📊 Difficulty: 1.5/5 | Terrain: 1.5/5
🔗 Explore more: geosociety.co/earthcache
#Geology #Spain #EarthCache
A medieval fortress in La Pedriza with stunning architecture and rich geology.
📍 Madrid, Spain
📊 Difficulty: 1.5/5 | Terrain: 1.5/5
🔗 Explore more: geosociety.co/earthcache
#Geology #Spain #EarthCache
November 21, 2025 at 8:01 PM
EarthCache Spotlight: New Castle of Manzanares el Real, Madrid!
A medieval fortress in La Pedriza with stunning architecture and rich geology.
📍 Madrid, Spain
📊 Difficulty: 1.5/5 | Terrain: 1.5/5
🔗 Explore more: geosociety.co/earthcache
#Geology #Spain #EarthCache
A medieval fortress in La Pedriza with stunning architecture and rich geology.
📍 Madrid, Spain
📊 Difficulty: 1.5/5 | Terrain: 1.5/5
🔗 Explore more: geosociety.co/earthcache
#Geology #Spain #EarthCache
The GSA #2026Calendar, Timeless Terrain, showcases images of hoodoos, Percé Rock, & Erg Chebbi sand dunes. This go-to guide for dates keeps you engaged with events & programs that shape our science and our future.
Buy the 2026 calendar here: geosociety.co/43uOa7E
#Calendar #GeologyRocks #Geoscience
Buy the 2026 calendar here: geosociety.co/43uOa7E
#Calendar #GeologyRocks #Geoscience
November 21, 2025 at 6:00 PM
The GSA #2026Calendar, Timeless Terrain, showcases images of hoodoos, Percé Rock, & Erg Chebbi sand dunes. This go-to guide for dates keeps you engaged with events & programs that shape our science and our future.
Buy the 2026 calendar here: geosociety.co/43uOa7E
#Calendar #GeologyRocks #Geoscience
Buy the 2026 calendar here: geosociety.co/43uOa7E
#Calendar #GeologyRocks #Geoscience
The Nov/Dec issue of #GSABulletin is now online! Explore new research across the geosciences and check out this month’s stunning cover featuring a large microbial buildup in the Upper Cambrian Wilberns Formation.
Read the full issue: geosociety.co/4ewtd0c
#GSAPubs #Geology #Geoscience #EarthScience
Read the full issue: geosociety.co/4ewtd0c
#GSAPubs #Geology #Geoscience #EarthScience
November 19, 2025 at 10:00 PM
The Nov/Dec issue of #GSABulletin is now online! Explore new research across the geosciences and check out this month’s stunning cover featuring a large microbial buildup in the Upper Cambrian Wilberns Formation.
Read the full issue: geosociety.co/4ewtd0c
#GSAPubs #Geology #Geoscience #EarthScience
Read the full issue: geosociety.co/4ewtd0c
#GSAPubs #Geology #Geoscience #EarthScience
New #Geosphere research delivers the first systematic look at paleoearthquake timing along the Western Nepal fault system. All studied faults ruptured in the Holocene—pointing to complex multifault events and added seismic hazards in the Himalaya.
Read the full article: geosociety.co/47EIZ7G
Read the full article: geosociety.co/47EIZ7G
November 18, 2025 at 9:00 PM
New #Geosphere research delivers the first systematic look at paleoearthquake timing along the Western Nepal fault system. All studied faults ruptured in the Holocene—pointing to complex multifault events and added seismic hazards in the Himalaya.
Read the full article: geosociety.co/47EIZ7G
Read the full article: geosociety.co/47EIZ7G
The November issue of #Geology is now online. Topics include "Evolution of skeletal mineralogy in cheilostome bryozoans from calcite to aragonite seas" and "Unique leaf mimicry in Jurassic insects."
Read more at geosociety.co/3M2YZaY
#Jurassic #Mineralogy #GSAPubs
Read more at geosociety.co/3M2YZaY
#Jurassic #Mineralogy #GSAPubs
November 17, 2025 at 8:00 PM
The November issue of #Geology is now online. Topics include "Evolution of skeletal mineralogy in cheilostome bryozoans from calcite to aragonite seas" and "Unique leaf mimicry in Jurassic insects."
Read more at geosociety.co/3M2YZaY
#Jurassic #Mineralogy #GSAPubs
Read more at geosociety.co/3M2YZaY
#Jurassic #Mineralogy #GSAPubs
How did methane cycling respond to extreme warming ~56 Ma?
A new #Geology study finds salinity in a Paleocene–Eocene lake limited methane production, potentially buffering greenhouse gas feedbacks. Important insight as inland waters worldwide become more saline.
Read more: geosociety.co/4o2qMWx
A new #Geology study finds salinity in a Paleocene–Eocene lake limited methane production, potentially buffering greenhouse gas feedbacks. Important insight as inland waters worldwide become more saline.
Read more: geosociety.co/4o2qMWx
November 17, 2025 at 6:01 PM
How did methane cycling respond to extreme warming ~56 Ma?
A new #Geology study finds salinity in a Paleocene–Eocene lake limited methane production, potentially buffering greenhouse gas feedbacks. Important insight as inland waters worldwide become more saline.
Read more: geosociety.co/4o2qMWx
A new #Geology study finds salinity in a Paleocene–Eocene lake limited methane production, potentially buffering greenhouse gas feedbacks. Important insight as inland waters worldwide become more saline.
Read more: geosociety.co/4o2qMWx
EarthCache Spotlight: Newnan’s Lake, Florida 🌿
A shallow, clay-bottom basin shaped by time, hydrology & geology. Its wetlands slow drainage, water levels swing widely, and drought once revealed 100+ ancient canoes.
Explore more EarthCaches: geosociety.co/earthcache
#EarthCache #Geology
A shallow, clay-bottom basin shaped by time, hydrology & geology. Its wetlands slow drainage, water levels swing widely, and drought once revealed 100+ ancient canoes.
Explore more EarthCaches: geosociety.co/earthcache
#EarthCache #Geology
November 17, 2025 at 4:21 PM
EarthCache Spotlight: Newnan’s Lake, Florida 🌿
A shallow, clay-bottom basin shaped by time, hydrology & geology. Its wetlands slow drainage, water levels swing widely, and drought once revealed 100+ ancient canoes.
Explore more EarthCaches: geosociety.co/earthcache
#EarthCache #Geology
A shallow, clay-bottom basin shaped by time, hydrology & geology. Its wetlands slow drainage, water levels swing widely, and drought once revealed 100+ ancient canoes.
Explore more EarthCaches: geosociety.co/earthcache
#EarthCache #Geology
Ever wondered how giant blobs of magma (plutons) get stuck in Earth’s crust?
In the new episode of Geology Bites, Geologist Keith Klepeis discusses his exciting work studying ancient magma pathways, dikes and sills, that once carried molten rock upward.
🎧 Listen now: geosociety.co/magma
In the new episode of Geology Bites, Geologist Keith Klepeis discusses his exciting work studying ancient magma pathways, dikes and sills, that once carried molten rock upward.
🎧 Listen now: geosociety.co/magma
November 16, 2025 at 8:00 PM
Ever wondered how giant blobs of magma (plutons) get stuck in Earth’s crust?
In the new episode of Geology Bites, Geologist Keith Klepeis discusses his exciting work studying ancient magma pathways, dikes and sills, that once carried molten rock upward.
🎧 Listen now: geosociety.co/magma
In the new episode of Geology Bites, Geologist Keith Klepeis discusses his exciting work studying ancient magma pathways, dikes and sills, that once carried molten rock upward.
🎧 Listen now: geosociety.co/magma
Ever wonder how GPS can pinpoint your location so accurately?
In a recent episode of Geology Bites, MIT’s Tom Herring discusses exciting new developments in high-precision geodesy.
Listen now: geosociety.co/43GicoX
#Geodesy #GPS #GeosciencePodcast #GeologtBites
In a recent episode of Geology Bites, MIT’s Tom Herring discusses exciting new developments in high-precision geodesy.
Listen now: geosociety.co/43GicoX
#Geodesy #GPS #GeosciencePodcast #GeologtBites
November 15, 2025 at 9:00 PM
Ever wonder how GPS can pinpoint your location so accurately?
In a recent episode of Geology Bites, MIT’s Tom Herring discusses exciting new developments in high-precision geodesy.
Listen now: geosociety.co/43GicoX
#Geodesy #GPS #GeosciencePodcast #GeologtBites
In a recent episode of Geology Bites, MIT’s Tom Herring discusses exciting new developments in high-precision geodesy.
Listen now: geosociety.co/43GicoX
#Geodesy #GPS #GeosciencePodcast #GeologtBites
Discover how planetary scientists and astronauts learn from Earth itself in “Analogs for Planetary Exploration” (edited by W. Brent Garry & Jacob E. Bleacher).
Buy a PDF of the book today: geosociety.co/4i11R4l
#PlanetaryScience #Astronaut #FieldTrips #Moon #Mars
Buy a PDF of the book today: geosociety.co/4i11R4l
#PlanetaryScience #Astronaut #FieldTrips #Moon #Mars
November 15, 2025 at 5:01 PM
Discover how planetary scientists and astronauts learn from Earth itself in “Analogs for Planetary Exploration” (edited by W. Brent Garry & Jacob E. Bleacher).
Buy a PDF of the book today: geosociety.co/4i11R4l
#PlanetaryScience #Astronaut #FieldTrips #Moon #Mars
Buy a PDF of the book today: geosociety.co/4i11R4l
#PlanetaryScience #Astronaut #FieldTrips #Moon #Mars
GSA was proud to support the 7th Annual Fería de las Ciencias de la Tierra y el Espacio in Puerto Vallarta! Students explored earthquakes, volcanoes, tides, hurricanes & more—guided by members of the scientific community.
Learn more: raugm.org.mx/feria
#PuertoVallarta2025 #CienciaParaTodos
Learn more: raugm.org.mx/feria
#PuertoVallarta2025 #CienciaParaTodos
November 14, 2025 at 10:22 PM
GSA was proud to support the 7th Annual Fería de las Ciencias de la Tierra y el Espacio in Puerto Vallarta! Students explored earthquakes, volcanoes, tides, hurricanes & more—guided by members of the scientific community.
Learn more: raugm.org.mx/feria
#PuertoVallarta2025 #CienciaParaTodos
Learn more: raugm.org.mx/feria
#PuertoVallarta2025 #CienciaParaTodos
New #GSABulletin research uncovers Andean-type plutons hidden within the Spanish Central System batholith. The study suggests back-arc basin closure and subduction of hyperextended Gondwanan crust enabled transient oceanic input.
Read the full paper: geosociety.co/47S52GQ
#Geology #Petrology
Read the full paper: geosociety.co/47S52GQ
#Geology #Petrology
November 14, 2025 at 9:01 PM
New #GSABulletin research uncovers Andean-type plutons hidden within the Spanish Central System batholith. The study suggests back-arc basin closure and subduction of hyperextended Gondwanan crust enabled transient oceanic input.
Read the full paper: geosociety.co/47S52GQ
#Geology #Petrology
Read the full paper: geosociety.co/47S52GQ
#Geology #Petrology
What controls rifted margin symmetry? New #Geology models show that mechanical anisotropy alone can shift rifts from symmetric to asymmetric—no rheology changes needed. Even moderate anisotropy can reshape rift systems.
Read more: geosociety.co/3JFKdGy
#Geodynamics #Lithosphere #Geoscience #GSAPubs
Read more: geosociety.co/3JFKdGy
#Geodynamics #Lithosphere #Geoscience #GSAPubs
November 14, 2025 at 6:55 PM
What controls rifted margin symmetry? New #Geology models show that mechanical anisotropy alone can shift rifts from symmetric to asymmetric—no rheology changes needed. Even moderate anisotropy can reshape rift systems.
Read more: geosociety.co/3JFKdGy
#Geodynamics #Lithosphere #Geoscience #GSAPubs
Read more: geosociety.co/3JFKdGy
#Geodynamics #Lithosphere #Geoscience #GSAPubs
Meet Gladys Pantoja, a PhD candidate at Clarkson University and two-time GSA On To the Future (OTF) scholar. Gladys champions diversity and mentorship, showing how OTF transforms careers and builds community.
🔗 Learn more about OTF: geosociety.co/OTF
#OnToTheFuture #GSAConnects #Geoscience
🔗 Learn more about OTF: geosociety.co/OTF
#OnToTheFuture #GSAConnects #Geoscience
November 9, 2025 at 1:00 AM
Meet Gladys Pantoja, a PhD candidate at Clarkson University and two-time GSA On To the Future (OTF) scholar. Gladys champions diversity and mentorship, showing how OTF transforms careers and builds community.
🔗 Learn more about OTF: geosociety.co/OTF
#OnToTheFuture #GSAConnects #Geoscience
🔗 Learn more about OTF: geosociety.co/OTF
#OnToTheFuture #GSAConnects #Geoscience
Big ideas start close to home. 🌎
Abstract submissions for GSA’s 2026 Section Meetings are OPEN! Share your regional discoveries, connect with peers, and shape the future of geoscience.
🗓️ Deadline: Jan 13, 2026
🔗 geosociety.co/SectionMeetings
Abstract submissions for GSA’s 2026 Section Meetings are OPEN! Share your regional discoveries, connect with peers, and shape the future of geoscience.
🗓️ Deadline: Jan 13, 2026
🔗 geosociety.co/SectionMeetings
November 7, 2025 at 8:59 PM
Big ideas start close to home. 🌎
Abstract submissions for GSA’s 2026 Section Meetings are OPEN! Share your regional discoveries, connect with peers, and shape the future of geoscience.
🗓️ Deadline: Jan 13, 2026
🔗 geosociety.co/SectionMeetings
Abstract submissions for GSA’s 2026 Section Meetings are OPEN! Share your regional discoveries, connect with peers, and shape the future of geoscience.
🗓️ Deadline: Jan 13, 2026
🔗 geosociety.co/SectionMeetings
What if geothermal energy could power the nation? 🔥
In a new #GSAConnectscast feature, USGS scientists explore how geothermal research is shaping a more sustainable energy future.
🎥 Watch now: geosociety.co/geothermal
#USGS #GeothermalEnergy #EnergyTransition #Sustainability
In a new #GSAConnectscast feature, USGS scientists explore how geothermal research is shaping a more sustainable energy future.
🎥 Watch now: geosociety.co/geothermal
#USGS #GeothermalEnergy #EnergyTransition #Sustainability
November 6, 2025 at 7:02 PM
What if geothermal energy could power the nation? 🔥
In a new #GSAConnectscast feature, USGS scientists explore how geothermal research is shaping a more sustainable energy future.
🎥 Watch now: geosociety.co/geothermal
#USGS #GeothermalEnergy #EnergyTransition #Sustainability
In a new #GSAConnectscast feature, USGS scientists explore how geothermal research is shaping a more sustainable energy future.
🎥 Watch now: geosociety.co/geothermal
#USGS #GeothermalEnergy #EnergyTransition #Sustainability
The November issue of GSA Today is packed with discovery—mountain bending in Alaska, a new way to visualize lithium resources, and the story of Victorian scientist Hertha Ayrton.
🔗 Read the newest issue here: geosociety.co/4qI5Gz5
#GSAToday #Geoscience #GSAPubs
🔗 Read the newest issue here: geosociety.co/4qI5Gz5
#GSAToday #Geoscience #GSAPubs
November 5, 2025 at 8:01 PM
The November issue of GSA Today is packed with discovery—mountain bending in Alaska, a new way to visualize lithium resources, and the story of Victorian scientist Hertha Ayrton.
🔗 Read the newest issue here: geosociety.co/4qI5Gz5
#GSAToday #Geoscience #GSAPubs
🔗 Read the newest issue here: geosociety.co/4qI5Gz5
#GSAToday #Geoscience #GSAPubs
Ever walked where the ocean once was? Deep in Peru’s 150-million-year-old limestone, Las Estalactitas y Estalagmitas de Quiocta hide fossils and spectacular cave formations.
📍 Location: Provincia de Luya , Peru
📊 Difficulty: 2/5 | Terrain: 3/5
🔗 Discover more EarthCaches: geocaching.com/play/search
📍 Location: Provincia de Luya , Peru
📊 Difficulty: 2/5 | Terrain: 3/5
🔗 Discover more EarthCaches: geocaching.com/play/search
November 3, 2025 at 11:22 PM
Ever walked where the ocean once was? Deep in Peru’s 150-million-year-old limestone, Las Estalactitas y Estalagmitas de Quiocta hide fossils and spectacular cave formations.
📍 Location: Provincia de Luya , Peru
📊 Difficulty: 2/5 | Terrain: 3/5
🔗 Discover more EarthCaches: geocaching.com/play/search
📍 Location: Provincia de Luya , Peru
📊 Difficulty: 2/5 | Terrain: 3/5
🔗 Discover more EarthCaches: geocaching.com/play/search
Did you know sand grains record their transport history?
New research in Geology shows zircon grains reveal their journey through microscopic abrasion “microtextures”—even in billion-year-old rocks!
Read more: geosociety.co/4oHG2J6
#Geology #GSAPubs
New research in Geology shows zircon grains reveal their journey through microscopic abrasion “microtextures”—even in billion-year-old rocks!
Read more: geosociety.co/4oHG2J6
#Geology #GSAPubs
November 1, 2025 at 12:32 PM
Did you know sand grains record their transport history?
New research in Geology shows zircon grains reveal their journey through microscopic abrasion “microtextures”—even in billion-year-old rocks!
Read more: geosociety.co/4oHG2J6
#Geology #GSAPubs
New research in Geology shows zircon grains reveal their journey through microscopic abrasion “microtextures”—even in billion-year-old rocks!
Read more: geosociety.co/4oHG2J6
#Geology #GSAPubs
What a week! #GSAConnects 2025 reminded us why geoscience matters—and how much stronger we are together.
From field trips and poster sessions to award-winning research and late-night conversations, San Antonio was alive with discovery and connection. Every moment moved our science forward.
From field trips and poster sessions to award-winning research and late-night conversations, San Antonio was alive with discovery and connection. Every moment moved our science forward.
October 31, 2025 at 6:41 AM
What a week! #GSAConnects 2025 reminded us why geoscience matters—and how much stronger we are together.
From field trips and poster sessions to award-winning research and late-night conversations, San Antonio was alive with discovery and connection. Every moment moved our science forward.
From field trips and poster sessions to award-winning research and late-night conversations, San Antonio was alive with discovery and connection. Every moment moved our science forward.
Congrats to Dr. Mahmud Muhammad, a 2022 GSA Grant Recipient! 🌎
His research connects geoscience with Indigenous culture, showing Qwélqwélústen (Mount Meager) was once a kilometer taller.
#GSA #Geoscience #IndigenousKnowledge
His research connects geoscience with Indigenous culture, showing Qwélqwélústen (Mount Meager) was once a kilometer taller.
#GSA #Geoscience #IndigenousKnowledge
September 25, 2025 at 10:01 PM
Congrats to Dr. Mahmud Muhammad, a 2022 GSA Grant Recipient! 🌎
His research connects geoscience with Indigenous culture, showing Qwélqwélústen (Mount Meager) was once a kilometer taller.
#GSA #Geoscience #IndigenousKnowledge
His research connects geoscience with Indigenous culture, showing Qwélqwélústen (Mount Meager) was once a kilometer taller.
#GSA #Geoscience #IndigenousKnowledge
Decades of data show how the Xiaolangdi Reservoir has transformed erosion in China’s Lower Yellow River. This study reveals vital insights for sustainable river management.
👉 Read more: geosociety.co/3VGJ2Ja
👉 Read more: geosociety.co/3VGJ2Ja
September 25, 2025 at 9:32 PM
Decades of data show how the Xiaolangdi Reservoir has transformed erosion in China’s Lower Yellow River. This study reveals vital insights for sustainable river management.
👉 Read more: geosociety.co/3VGJ2Ja
👉 Read more: geosociety.co/3VGJ2Ja
🌎✨ Adventure is calling—will you answer?
Join expert guides, discover world-class sites, and experience geoscience where it happens—out in the field.
Spots are limited and selling fast, don’t get left behind!
Explore all field trips here: geosociety.co/FieldTrips
#GSAConnects #GSAintheField
Join expert guides, discover world-class sites, and experience geoscience where it happens—out in the field.
Spots are limited and selling fast, don’t get left behind!
Explore all field trips here: geosociety.co/FieldTrips
#GSAConnects #GSAintheField
September 8, 2025 at 4:50 PM
🌎✨ Adventure is calling—will you answer?
Join expert guides, discover world-class sites, and experience geoscience where it happens—out in the field.
Spots are limited and selling fast, don’t get left behind!
Explore all field trips here: geosociety.co/FieldTrips
#GSAConnects #GSAintheField
Join expert guides, discover world-class sites, and experience geoscience where it happens—out in the field.
Spots are limited and selling fast, don’t get left behind!
Explore all field trips here: geosociety.co/FieldTrips
#GSAConnects #GSAintheField
🗻 How did the Appalachian Mountains form—and what do they have in common with mountain belts across the Atlantic?
Geologist Cees van Staal connects the tectonic dots in the latest @geologybites.bsky.social episode.
Listen Now: geosociety.co/4gamRo4
#GeologyBites #Geoscience #AppalachianGeology
Geologist Cees van Staal connects the tectonic dots in the latest @geologybites.bsky.social episode.
Listen Now: geosociety.co/4gamRo4
#GeologyBites #Geoscience #AppalachianGeology
September 8, 2025 at 1:53 PM
🗻 How did the Appalachian Mountains form—and what do they have in common with mountain belts across the Atlantic?
Geologist Cees van Staal connects the tectonic dots in the latest @geologybites.bsky.social episode.
Listen Now: geosociety.co/4gamRo4
#GeologyBites #Geoscience #AppalachianGeology
Geologist Cees van Staal connects the tectonic dots in the latest @geologybites.bsky.social episode.
Listen Now: geosociety.co/4gamRo4
#GeologyBites #Geoscience #AppalachianGeology
We’re proud to be at the Annual Technical Conference of the National Association of Black Geoscientists (NABG) in the Green Center at the Colorado School of Mines campus.
Come connect with the GSA team, learn how we support geoscientists & explore opportunities.
#NABG44 #Geoscience #GSAintheField
Come connect with the GSA team, learn how we support geoscientists & explore opportunities.
#NABG44 #Geoscience #GSAintheField
September 4, 2025 at 8:53 PM
We’re proud to be at the Annual Technical Conference of the National Association of Black Geoscientists (NABG) in the Green Center at the Colorado School of Mines campus.
Come connect with the GSA team, learn how we support geoscientists & explore opportunities.
#NABG44 #Geoscience #GSAintheField
Come connect with the GSA team, learn how we support geoscientists & explore opportunities.
#NABG44 #Geoscience #GSAintheField