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

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

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

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

SciTech Chronicles. . . . . . . . .Feb 21st, 2025

https://bit.ly/stc022125

#"Younger Dryas" #Laacher #sulfate #geochronology #recycle #nitrification #pH #f-NBD #thermoelectric #ingots #doped #efficient ##superbugs #co-scientist #antibiotics #immune #Fetal #acetaminophen #plasma #CANDLE

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

Last week's top hike was from Grosse Scheidegg to Rosenlaui in the Central Swiss Alps.

This thought crossed my mind: I walked here first in the summer of 1965, as a 10 year old.

Longterm exhumation in the area is ca 0.5 mm/a. Add another 0.5 mm/a post glacial rebound since the last ice age, and you have a total uplift of 1.0 mm/a.

Since the time that I walked here first 60 years ago, all these mountains have become 6 cm taller!

A sobering thought...

#Geochronology #Thermochronology

I am delighted to announce that I am involved in the launch of a new scientific journal dedicated to the field of timescales research for the Earth Sciences:

Geochronology, Thermochronology and Time Scale Research.

This project is the initiative of ScilightPress Pty, Ltd., a young publishing house based in Melbourne, Australia. For more information about the journal please visit:
https://sciltp.com/journals/gttsr
or contact us at gttsr@sciltp.com
#EarthSciences #geochronology