#geochronology — Public Fediverse posts

🏛️ New HybridMind42 paper now staged:
“The Anchor Regime: Deep-Time

Persistence and Boundary Integrity in the U-238 → Pb-206 Decay Series”

Phase 5 extends the Boundary-Filtered Persistence Framework (BFPF) into radioactive decay systems and geological timescales.

Key themes: • secular equilibrium as synchronized transformation • radon escape as boundary breach • persistence through evolving containment • radiation damage vs thermal annealing • disequilibrium as permeability data

Core concept: Persistence is maintained, not preserved.

This paper bridges: nuclear physics ↔ material science ↔ long-timescale persistence systems.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-9d4?utm_source=share&utm_medium=android&r=75c2ac

#NuclearPhysics #Geochronology #ComplexSystems #BFPF #BoundaryDynamics #HybridMind42 #Physics #SystemsThinking

🏛️ New HybridMind42 paper now staged:
“The Anchor Regime: Deep-Time

Persistence and Boundary Integrity in the U-238 → Pb-206 Decay Series”

Phase 5 extends the Boundary-Filtered Persistence Framework (BFPF) into radioactive decay systems and geological timescales.

Key themes: • secular equilibrium as synchronized transformation • radon escape as boundary breach • persistence through evolving containment • radiation damage vs thermal annealing • disequilibrium as permeability data

Core concept: Persistence is maintained, not preserved.

This paper bridges: nuclear physics ↔ material science ↔ long-timescale persistence systems.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-9d4?utm_source=share&utm_medium=android&r=75c2ac

#NuclearPhysics #Geochronology #ComplexSystems #BFPF #BoundaryDynamics #HybridMind42 #Physics #SystemsThinking

🏛️ New HybridMind42 paper now staged:
“The Anchor Regime: Deep-Time

Persistence and Boundary Integrity in the U-238 → Pb-206 Decay Series”

Phase 5 extends the Boundary-Filtered Persistence Framework (BFPF) into radioactive decay systems and geological timescales.

Key themes: • secular equilibrium as synchronized transformation • radon escape as boundary breach • persistence through evolving containment • radiation damage vs thermal annealing • disequilibrium as permeability data

Core concept: Persistence is maintained, not preserved.

This paper bridges: nuclear physics ↔ material science ↔ long-timescale persistence systems.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-9d4?utm_source=share&utm_medium=android&r=75c2ac

#NuclearPhysics #Geochronology #ComplexSystems #BFPF #BoundaryDynamics #HybridMind42 #Physics #SystemsThinking

🏛️ New HybridMind42 paper now staged:
“The Anchor Regime: Deep-Time

Persistence and Boundary Integrity in the U-238 → Pb-206 Decay Series”

Phase 5 extends the Boundary-Filtered Persistence Framework (BFPF) into radioactive decay systems and geological timescales.

Key themes: • secular equilibrium as synchronized transformation • radon escape as boundary breach • persistence through evolving containment • radiation damage vs thermal annealing • disequilibrium as permeability data

Core concept: Persistence is maintained, not preserved.

This paper bridges: nuclear physics ↔ material science ↔ long-timescale persistence systems.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-9d4?utm_source=share&utm_medium=android&r=75c2ac

#NuclearPhysics #Geochronology #ComplexSystems #BFPF #BoundaryDynamics #HybridMind42 #Physics #SystemsThinking

🏛️ New HybridMind42 paper now staged:
“The Anchor Regime: Deep-Time

Persistence and Boundary Integrity in the U-238 → Pb-206 Decay Series”

Phase 5 extends the Boundary-Filtered Persistence Framework (BFPF) into radioactive decay systems and geological timescales.

Key themes: • secular equilibrium as synchronized transformation • radon escape as boundary breach • persistence through evolving containment • radiation damage vs thermal annealing • disequilibrium as permeability data

Core concept: Persistence is maintained, not preserved.

This paper bridges: nuclear physics ↔ material science ↔ long-timescale persistence systems.

https://open.substack.com/pub/hybridmind42/p/hybridmind42-boundary-dynamics-series-9d4?utm_source=share&utm_medium=android&r=75c2ac

#NuclearPhysics #Geochronology #ComplexSystems #BFPF #BoundaryDynamics #HybridMind42 #Physics #SystemsThinking

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

#WeekendReading: Tangunan et al.'s short but insightful piece on the uncertainties behind Earth’s timelines.

Link: https://pastglobalchanges.org/publications/pages-magazines/pages-magazine/138913

#EarthSci #Stratigraphy #Geochronology

Early humans (Homo sapiens) in Paleolithic South Africa deliberately sought out and systematically quarried geological formations for tool-making materials as early as 220,000 years ago.
#Archaeology #Paleoanthropology #Geochronology #QuaternaryEcology #sflorg
https://www.sflorg.com/2026/04/arch04092601.html

Early humans (Homo sapiens) in Paleolithic South Africa deliberately sought out and systematically quarried geological formations for tool-making materials as early as 220,000 years ago.
#Archaeology #Paleoanthropology #Geochronology #QuaternaryEcology #sflorg
https://www.sflorg.com/2026/04/arch04092601.html

Early humans (Homo sapiens) in Paleolithic South Africa deliberately sought out and systematically quarried geological formations for tool-making materials as early as 220,000 years ago.
#Archaeology #Paleoanthropology #Geochronology #QuaternaryEcology #sflorg
https://www.sflorg.com/2026/04/arch04092601.html

Early humans (Homo sapiens) in Paleolithic South Africa deliberately sought out and systematically quarried geological formations for tool-making materials as early as 220,000 years ago.
#Archaeology #Paleoanthropology #Geochronology #QuaternaryEcology #sflorg
https://www.sflorg.com/2026/04/arch04092601.html

Early humans (Homo sapiens) in Paleolithic South Africa deliberately sought out and systematically quarried geological formations for tool-making materials as early as 220,000 years ago.
#Archaeology #Paleoanthropology #Geochronology #QuaternaryEcology #sflorg
https://www.sflorg.com/2026/04/arch04092601.html

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

The New Glacial Geomorphological Map From New Zealand [2021]
--
https://blogs.egu.eu/divisions/cr/2021/04/02/new-zealand-geomorphology-glaciers/ <-- shared (2021) technical article/blog, Cryospheric Sciences (CR) Division, @European Geosciences Union
--
https://doi.org/10.1080/17445647.2021.1876777 <-- shared (2020) paper
--
#GIS #spatial #mapping #NewZealand #geomorphology #NewZealand #SouthernAlps #Quaternary #glaciation #landscape #hydrogeomorphology #water #ice #sediment #glacier #glacial #cryosphere #spatialanalysis #geology #Ahuriri #AhuririRiver #paleolake #WaitakiRiver #basin #remotesensing #postglacial #moraine #glaciology #cryosphere #processes #morphology #LastGlacialMaximum #geochronology

New research applies uranium-thorium dating to 19th-century coral cottages in French Polynesia, revealing construction timelines for Polynesian homes that colonial records largely ignored. #Archaeology #PacificHistory #Geochronology @antiquity.ac.uk https://www.anthropology.net/p/coral-walls-uranium-clocks-and-the

Why is AAR (Amino Acid Racemisation; by implication #palaeoproteomics) so often overlooked for #geochronology? New paper by @[email protected], using Bithynia snails 🐌 to date the last 1Ma: 4 new reference sets for climate & Quaternary Science 🌍 open-research-europe.ec.europa.eu/articles/5-396

History of Earth (Earth 🌍)

The natural history of Earth concerns the development of planet Earth from its formation to the present day. Nearly all branches of natural science have contributed to understanding of the main events of Earth's past, characterized by constant geological change and biological evolution. The geological time scale, as defined by inte...

https://en.wikipedia.org/wiki/History_of_Earth

#HistoryOfEarth #Earth #WorldHistory #Geochronology #GeologyTheories #CitationOverkill

Ancient rocks reveal critical metal origin and continent-breaking forces

Researchers found that newly discovered niobium-rich carbonatites were formed more than 800 million years ago – rising from deep within the Earth through fractures of the crust during a tectonic rifting event that ultimately tore apart the supercontinent known as Rodinia: www.uni-goettingen.de/en/3240.html?id=7909

Research in #GeologicalMagazine: https://doi.org/10.1017/S0016756825100204

#Geoscience #Isotopes #Geochronology

Ancient rocks reveal critical metal origin and continent-breaking forces

Researchers found that newly discovered niobium-rich carbonatites were formed more than 800 million years ago – rising from deep within the Earth through fractures of the crust during a tectonic rifting event that ultimately tore apart the supercontinent known as Rodinia: www.uni-goettingen.de/en/3240.html?id=7909

Research in #GeologicalMagazine: https://doi.org/10.1017/S0016756825100204

#Geoscience #Isotopes #Geochronology

Ancient rocks reveal critical metal origin and continent-breaking forces

Researchers found that newly discovered niobium-rich carbonatites were formed more than 800 million years ago – rising from deep within the Earth through fractures of the crust during a tectonic rifting event that ultimately tore apart the supercontinent known as Rodinia: www.uni-goettingen.de/en/3240.html?id=7909

Research in #GeologicalMagazine: https://doi.org/10.1017/S0016756825100204

#Geoscience #Isotopes #Geochronology

Ancient rocks reveal critical metal origin and continent-breaking forces

Researchers found that newly discovered niobium-rich carbonatites were formed more than 800 million years ago – rising from deep within the Earth through fractures of the crust during a tectonic rifting event that ultimately tore apart the supercontinent known as Rodinia: www.uni-goettingen.de/en/3240.html?id=7909

Research in #GeologicalMagazine: https://doi.org/10.1017/S0016756825100204

#Geoscience #Isotopes #Geochronology

Ancient rocks reveal critical metal origin and continent-breaking forces

Researchers found that newly discovered niobium-rich carbonatites were formed more than 800 million years ago – rising from deep within the Earth through fractures of the crust during a tectonic rifting event that ultimately tore apart the supercontinent known as Rodinia: www.uni-goettingen.de/en/3240.html?id=7909

Research in #GeologicalMagazine: https://doi.org/10.1017/S0016756825100204

#Geoscience #Isotopes #Geochronology

Series (stratigraphy) (Geology terminology ⛰️)

Series are subdivisions of rock layers based on the age of the rock and formally defined by international conventions of the geological timescale. A series is therefore a sequence of strata defining a chronostratigraphic unit. Series are subdivisions of systems and are themselves divided into sta...

https://en.wikipedia.org/wiki/Series_(stratigraphy)

#Series #Geochronology #GeologicalUnits #GeologicalEpochs #Chronostratigraphy #GeologicTimeScales

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

#Sanidine from the Fish Canyon Tuff is essential to understanding the pace of events in the #Cenozoic

High potassium, quickly erupted and cooled, and old enough to have accumulated sufficient 40Ar from radioactive decay. These crystals calibrate neutron flux for 40Ar/39Ar dating. The 28.2 Ma age of the FCT sanidine has been fine-tuned using #Milankovitch cycles of other ash beds in stable sedimentary basins.

photo from MinDat.org by Dan Polhemus

#MinCup25 #Geochronology #DeepTime #Colorado

History of life (Paleontology 🦕)

The history of life on Earth traces the processes by which living and extinct organisms evolved, from the earliest emergence of life to the present day. Earth formed about 4.5 billion years ago and evidence suggests that life emerged prior to 3.7 Ga. The similarities among all known present-day species indicate that they have diverge...

https://en.wikipedia.org/wiki/History_of_life

#HistoryOfLife #Paleontology #EarthSciences #Geochronology #EvolutionaryBiology

Erathem (Geology terminology ⛰️)

In stratigraphy, paleontology, geology, and geobiology, an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale. It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years – less than a geological eon, but greater than ...

https://en.wikipedia.org/wiki/Erathem

#Erathem #Erathems #Stratigraphy #Geochronology #GeologicalEras #Paleogeography

Erathem (Geology terminology ⛰️)

In stratigraphy, paleontology, geology, and geobiology, an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale. It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years – less than a geological eon, but greater than ...

https://en.wikipedia.org/wiki/Erathem

#Erathem #Erathems #Stratigraphy #Geochronology #GeologicalEras #Paleogeography

Erathem (Geology terminology ⛰️)

In stratigraphy, paleontology, geology, and geobiology, an erathem is the total stratigraphic unit deposited during a certain corresponding span of time during an era in the geologic timescale. It can therefore be used as a chronostratigraphic unit of time which delineates a large span of years – less than a geological eon, but greater than ...

https://en.wikipedia.org/wiki/Erathem

#Erathem #Erathems #Stratigraphy #Geochronology #GeologicalEras #Paleogeography

Çatalhöyük ‘Map’ Mural May Depict Volcanic Eruption 8,900 Years Ago
--
https://www.sci.news/archaeology/science-catalhoyuk-map-mural-volcanic-eruption-01681.html <-- shared technical article
--
https://doi.org/10.1371/journal.pone.0084711 <-- shared paper
--
https://www.bbc.com/audio/play/p09y1ym0 <-- shared BBC podcast ‘You're Dead to Me’ on Çatalhöyük
--
#GIS #spatial #mapping #cartography #history #ancienthistory #Neolithic #geology #volcanic #vulcanism #MountHasan #HasanDagi #Turkey #prehistory #prehistoric #archaeology #engineeringeology #map #ancientmap #eruption #mural #artwork #village #Çatalhöyük #Catalhoyuk #obsidian #tools #knapping #dating #geochronology #volcanicrock #age

Çatalhöyük ‘Map’ Mural May Depict Volcanic Eruption 8,900 Years Ago
--
https://www.sci.news/archaeology/science-catalhoyuk-map-mural-volcanic-eruption-01681.html <-- shared technical article
--
https://doi.org/10.1371/journal.pone.0084711 <-- shared paper
--
https://www.bbc.com/audio/play/p09y1ym0 <-- shared BBC podcast ‘You're Dead to Me’ on Çatalhöyük
--
#GIS #spatial #mapping #cartography #history #ancienthistory #Neolithic #geology #volcanic #vulcanism #MountHasan #HasanDagi #Turkey #prehistory #prehistoric #archaeology #engineeringeology #map #ancientmap #eruption #mural #artwork #village #Çatalhöyük #Catalhoyuk #obsidian #tools #knapping #dating #geochronology #volcanicrock #age

Çatalhöyük ‘Map’ Mural May Depict Volcanic Eruption 8,900 Years Ago
--
https://www.sci.news/archaeology/science-catalhoyuk-map-mural-volcanic-eruption-01681.html <-- shared technical article
--
https://doi.org/10.1371/journal.pone.0084711 <-- shared paper
--
https://www.bbc.com/audio/play/p09y1ym0 <-- shared BBC podcast ‘You're Dead to Me’ on Çatalhöyük
--
#GIS #spatial #mapping #cartography #history #ancienthistory #Neolithic #geology #volcanic #vulcanism #MountHasan #HasanDagi #Turkey #prehistory #prehistoric #archaeology #engineeringeology #map #ancientmap #eruption #mural #artwork #village #Çatalhöyük #Catalhoyuk #obsidian #tools #knapping #dating #geochronology #volcanicrock #age

Çatalhöyük ‘Map’ Mural May Depict Volcanic Eruption 8,900 Years Ago
--
https://www.sci.news/archaeology/science-catalhoyuk-map-mural-volcanic-eruption-01681.html <-- shared technical article
--
https://doi.org/10.1371/journal.pone.0084711 <-- shared paper
--
https://www.bbc.com/audio/play/p09y1ym0 <-- shared BBC podcast ‘You're Dead to Me’ on Çatalhöyük
--
#GIS #spatial #mapping #cartography #history #ancienthistory #Neolithic #geology #volcanic #vulcanism #MountHasan #HasanDagi #Turkey #prehistory #prehistoric #archaeology #engineeringeology #map #ancientmap #eruption #mural #artwork #village #Çatalhöyük #Catalhoyuk #obsidian #tools #knapping #dating #geochronology #volcanicrock #age

Çatalhöyük ‘Map’ Mural May Depict Volcanic Eruption 8,900 Years Ago
--
https://www.sci.news/archaeology/science-catalhoyuk-map-mural-volcanic-eruption-01681.html <-- shared technical article
--
https://doi.org/10.1371/journal.pone.0084711 <-- shared paper
--
https://www.bbc.com/audio/play/p09y1ym0 <-- shared BBC podcast ‘You're Dead to Me’ on Çatalhöyük
--
#GIS #spatial #mapping #cartography #history #ancienthistory #Neolithic #geology #volcanic #vulcanism #MountHasan #HasanDagi #Turkey #prehistory #prehistoric #archaeology #engineeringeology #map #ancientmap #eruption #mural #artwork #village #Çatalhöyük #Catalhoyuk #obsidian #tools #knapping #dating #geochronology #volcanicrock #age

Geochronology supports LGM age for human tracks at White Sands, New Mexico

https://www.science.org/doi/10.1126/sciadv.adv4951

#HackerNews #Geochronology #LGM #WhiteSands #HumanTracks #NewMexico #ScienceNews

Stage (stratigraphy) (Geology terminology ⛰️)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

Come and join me and work in beautiful #Sydney.

We have a new 3-yr research manager #job the #UNSW Micardas radiocarbon lab. Open to Australian citizens only. #Geochronology experience recommended.

#academia

https://external-careers.jobs.unsw.edu.au/en/job/532080/research-manager-ncris-radiocarbon

Stage (stratigraphy) (Geology terminology ⛰️)

In chronostratigraphy, a stage is a succession of rock strata laid down in a single age on the geologic timescale, which usually represents millions of years of deposition. A given stage of rock and the corresponding age of time will by convention have the same name, and the same boundaries. Rock series are divided...

https://en.wikipedia.org/wiki/Stage_(stratigraphy)

#Stage #UnitsOfTime #Paleobiology #Geochronology #GeologicalAges #Paleogeography

Eonothem (Geology terminology ⛰️)

In stratigraphy and geology, an eonothem is the totality of rock strata laid down in the stratigraphic record deposited during a certain eon of the continuous geologic timescale. The eonothem is not to be confused with the eon itself, which is a corresponding division of geologic time spanning a specific number of years, ...

https://en.wikipedia.org/wiki/Eonothem

#Eonothem #Geochronology #GeologicalEons #GeologicalUnits #Chronostratigraphy #GeologicTimeScales

Eonothem (Geology terminology ⛰️)

In stratigraphy and geology, an eonothem is the totality of rock strata laid down in the stratigraphic record deposited during a certain eon of the continuous geologic timescale. The eonothem is not to be confused with the eon itself, which is a corresponding division of geologic time spanning a specific number of years, ...

https://en.wikipedia.org/wiki/Eonothem

#Eonothem #Geochronology #GeologicalEons #GeologicalUnits #Chronostratigraphy #GeologicTimeScales

Eonothem (Geology terminology ⛰️)

In stratigraphy and geology, an eonothem is the totality of rock strata laid down in the stratigraphic record deposited during a certain eon of the continuous geologic timescale. The eonothem is not to be confused with the eon itself, which is a corresponding division of geologic time spanning a specific number of years, ...

https://en.wikipedia.org/wiki/Eonothem

#Eonothem #Geochronology #GeologicalEons #GeologicalUnits #Chronostratigraphy #GeologicTimeScales