#archaean — Public Fediverse posts

#FridayFold in #Archaean amphibolites seen on the west coast of the #IsleofLewis.

#FridayFold in #Archaean amphibolites seen on the west coast of the #IsleofLewis.

#FridayFold in #Archaean amphibolites seen on the west coast of the #IsleofLewis.

#FridayFold in #Archaean amphibolites seen on the west coast of the #IsleofLewis.

Tiger stipe camouflage isn't really effective on the west coast of the #IsleofLewis👀
Compositional (rhythmic?) banding is preserved locally within an occurrence of #Lewisian "Older Basic Suite" meta-basics/ultrabasics.
#Archaean

Tiger stipe camouflage isn't really effective on the west coast of the #IsleofLewis👀
Compositional (rhythmic?) banding is preserved locally within an occurrence of #Lewisian "Older Basic Suite" meta-basics/ultrabasics.
#Archaean

Tiger stipe camouflage isn't really effective on the west coast of the #IsleofLewis👀
Compositional (rhythmic?) banding is preserved locally within an occurrence of #Lewisian "Older Basic Suite" meta-basics/ultrabasics.
#Archaean

Tiger stipe camouflage isn't really effective on the west coast of the #IsleofLewis👀
Compositional (rhythmic?) banding is preserved locally within an occurrence of #Lewisian "Older Basic Suite" meta-basics/ultrabasics.
#Archaean

Tiger stipe camouflage isn't really effective on the west coast of the #IsleofLewis👀
Compositional (rhythmic?) banding is preserved locally within an occurrence of #Lewisian "Older Basic Suite" meta-basics/ultrabasics.
#Archaean

#FridayFold seen in a new road cutting near Stornoway.

#Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian.

Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant.

#FridayFold seen in a new road cutting near Stornoway.

#Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian.

Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant.

#FridayFold seen in a new road cutting near Stornoway.

#Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian.

Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant.

#FridayFold seen in a new road cutting near Stornoway.

#Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian.

Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant.

#FridayFold seen in a new road cutting near Stornoway.

#Archaean Lewisian gneiss is cut by mafic #OuterHebrides dyke. Both are then folded during the #Laxfordian.

Cross cutting of the gneissic foliation can be seen in the core of the fold, whilst the limbs are concordant.

The Craton Enigma - Scientists Propose a New Continental Formation Theory
--
https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
--
https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
--
#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere

The Craton Enigma - Scientists Propose a New Continental Formation Theory
--
https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
--
https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
--
#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere

The Craton Enigma - Scientists Propose a New Continental Formation Theory
--
https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
--
https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
--
#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere

The Craton Enigma - Scientists Propose a New Continental Formation Theory
--
https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
--
https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
--
#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere

The Craton Enigma - Scientists Propose a New Continental Formation Theory
--
https://scitechdaily.com/the-craton-enigma-scientists-propose-a-new-continental-formation-theory/ <-- shared technical article
--
https://doi.org/10.1038/s41586-024-07307-1 <-- shared paper
--
#GIS #spatial #mapping #geology #structuralgeology #cratons #craton #planetary #evolution #platetectonics #earth #structure #geologicalhistory #cooling #rock #weathering #erosion #water #Archaean #continental #crust #mantle #landmasses #continentalcrust #subaerial #magma #terrigenous #sediments #sedimentation #lithosphere

Evidence of Earth’s Oldest #Glaciers Found in South Africa
https://eos.org/articles/evidence-of-earths-oldest-glaciers-found-in-south-africa #discovery #science

Earth’s first #glaciation at 2.9 Ga revealed by triple oxygen #isotopes https://www.geochemicalperspectivesletters.org/article2319/

"Drawing on evidence from some of the oldest undisturbed rocks on #Earth, the study authors said they see evidence for #IceSheets during the #planet’s ancient #Archaean eon similar to those found today in #mountain ranges across the world. It is the oldest evidence of glaciers ever #discovered"

Evidence of Earth’s Oldest #Glaciers Found in South Africa
https://eos.org/articles/evidence-of-earths-oldest-glaciers-found-in-south-africa #discovery #science

Earth’s first #glaciation at 2.9 Ga revealed by triple oxygen #isotopes https://www.geochemicalperspectivesletters.org/article2319/

"Drawing on evidence from some of the oldest undisturbed rocks on #Earth, the study authors said they see evidence for #IceSheets during the #planet’s ancient #Archaean eon similar to those found today in #mountain ranges across the world. It is the oldest evidence of glaciers ever #discovered"

Evidence of Earth’s Oldest #Glaciers Found in South Africa
https://eos.org/articles/evidence-of-earths-oldest-glaciers-found-in-south-africa #discovery #science

Earth’s first #glaciation at 2.9 Ga revealed by triple oxygen #isotopes https://www.geochemicalperspectivesletters.org/article2319/

"Drawing on evidence from some of the oldest undisturbed rocks on #Earth, the study authors said they see evidence for #IceSheets during the #planet’s ancient #Archaean eon similar to those found today in #mountain ranges across the world. It is the oldest evidence of glaciers ever #discovered"

Evidence of Earth’s Oldest #Glaciers Found in South Africa
https://eos.org/articles/evidence-of-earths-oldest-glaciers-found-in-south-africa #discovery #science

Earth’s first #glaciation at 2.9 Ga revealed by triple oxygen #isotopes https://www.geochemicalperspectivesletters.org/article2319/

"Drawing on evidence from some of the oldest undisturbed rocks on #Earth, the study authors said they see evidence for #IceSheets during the #planet’s ancient #Archaean eon similar to those found today in #mountain ranges across the world. It is the oldest evidence of glaciers ever #discovered"

Evidence of Earth’s Oldest #Glaciers Found in South Africa
https://eos.org/articles/evidence-of-earths-oldest-glaciers-found-in-south-africa #discovery #science

Earth’s first #glaciation at 2.9 Ga revealed by triple oxygen #isotopes https://www.geochemicalperspectivesletters.org/article2319/

"Drawing on evidence from some of the oldest undisturbed rocks on #Earth, the study authors said they see evidence for #IceSheets during the #planet’s ancient #Archaean eon similar to those found today in #mountain ranges across the world. It is the oldest evidence of glaciers ever #discovered"