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...
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, ...
These Revolutionary Maps Are Revealing Earth’s Geological Secrets
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https://www.zmescience.com/science/tectonic-model-beatiful-new/ <-- shared technical article
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https://doi.org/10.1016/j.earscirev.2022.104069 <-- shared paper
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#GIS #spatial #mapping #tomography #geology #remotesensing #structuralgeology #plates #platetectonics #earth #global #model #modeling #opendata #opensource #spatialdata #vector #platemodel #mechanics #GPS #earthquakes #volcanoes #topography #orogeny #tectonics #spatiotemporal #spatialanalysis #Pangea #Gondwana #Gondwanaland #ReuniteGondwanaland #Laurasia #lithosphere #crust #mantle #core #geophysics #geochemistry #geochronology #dating #Mesoproterozoic
Chronozone (Geology terminology )
A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. ...
Deep time (Evolution 
)
Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his book Basin and Range, parts of which originally appeared in The New Yorker magazine. The philosophical concept of geological time was developed in the 18th century by Scottish geologist James Hutton; his "system of the habitable Earth" was a deistic mechan...
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...
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...
Deep time (Evolution )
Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his book Basin and Range, parts of which originally appeared in The New Yorker magazine. The philosophical concept of geological time was developed in the 18th century by Scottish geologist James Hutton; his "system of the habitable Earth" was a deistic mechan...
from the Rocky Mountain Association of Geologists:
Titanite: the Wedge-shaped Timepiece, by Ronald L. Parker
#Titanite has a distinctive crystal form that it flaunts…
…titanite is among the very few minerals that enjoy a larger color dispersion than that of diamond…
Hayden, Watson & Wark established that the relative concentration of Zr 4+ in titanite is systematically related to pressure and temperature conditions.
https://www.rmag.org/index.php?src=directory&view=articles&srctype=detail&back=articles&refno=8425
Chronozone (Paleogeography )
A chronozone or chron is a unit in chronostratigraphy, defined by events such as geomagnetic reversals, or based on the presence of specific fossils. According to the International Commission on Stratigraphy, the term "chronozone" refers to the rocks formed during a particular time period, while "chron" refers to that time period. Altho...
Dating Speleothems and Speleothem Growth
On Sunday I was invited to give a Science Forum webinar to the Australasian Cave and Karst Management Association. The topic was 'Dating Speleothems and Speleothem Growth'. The recording is now up on the ACKMA website. Although the talk was aimed as cave managers and guides, I hope it will be useful for anyone interested in caves and how they can be dated, as well as educators in the field of landscape evolution, Quaternary Science, stalagmite paleoclimate and caves and karst geomorphology.
http://andy-baker.org/2024/07/31/dating-speleothems-and-speleothem-growth/
A Hidden Landscape - Interpreting Buried Archaeological Site Potential in the White River Valley, Indiana
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https://doi.org/10.5406/23274271.48.3.02 <-- shared paper
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#GIS #spatial #mapping #geoarchaeology #buriedsitepotential #inceptisols #mollisols #predictivemodel #soils #WhiteRiverValley #Indiana #model #modeling #spatialanalysis #spatiotemporal #sampling #FirstNation #indigeneous #settlements #geochronology #dating #age #construction #infrastructure #freeway #I69
System (stratigraphy) (Geological periods 
)
A system in stratigraphy is a sequence of strata that were laid down together within the same corresponding geological period. The associated period is a chronological time unit, a part of the geological time scale, while the system is a unit of chronostratigraphy. Systems are unrelated to lithostratigraphy, whic...
Deep time (Evolution )
Deep time is a term introduced and applied by John McPhee to the concept of geologic time in his book Basin and Range, parts of which originally appeared in The New Yorker magazine. The philosophical concept of geological time was developed in the 18th century by Scottish geologist James Hutton; his "system of the habitable Earth" was a deistic mechan...
Reconnaissance Basement Geology and Tectonics of North Zealandia
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https://doi.org/10.1029/2023TC007961 <-- shared paper
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#GIS #spatial #mapping #modeling #model #Zealandia #continent #NewZealand #geology #structuralgeology #Gowanda #Gowandaland #rock #dredge #sampling #samples #geochemistry #geochronology #Cretaceous #LostContinent #remotesensing #geomagnetism #geophysics #geologicmap #Mesozoic #Eocene #tectonics
System (stratigraphy) (Geological periods )
A system in stratigraphy is a sequence of strata that were laid down together within the same corresponding geological period. The associated period is a chronological time unit, a part of the geological time scale, while the system is a unit of chronostratigraphy. Systems are unrelated to lithostratigraphy, whic...
@RandomOzChron SNAP!!! Faithfull et al 2018
History of life (Paleontology )
The history of life on Earth traces the processes by which living and fossil organisms evolved, from the earliest emergence of life to present day. Earth formed about 4.5 billion years ago and evidence suggests that life emerged prior to 3.7 Ga. Although there is some evidence of life as early as 4.1 to 4.28 Ga, it remains controvers...
I've been down a UTh rabbithole the last couple of weeks - did you know most labs still use #IsoPlot to correct their UTh dates? And IsoPlot only runs on ancient versions of excel... enter Pieter Vermeesch from UCL, who has kindly written an IsoplotR package!
There are limited examples out there (understandable as the packages does EVERYTHING), so I've put one up on my github - recorrecting published dates from Treble et al. (2022).
https://github.com/MichelineCampbell/sandbox/tree/master/CalculateUThCorrections
Greg Cocks 
