GregCocks, to Geology
@GregCocks@techhub.social avatar
ksircombe, to Geology

Some post-Christmas tourism at Kiritehere Beach, a remote location on the west coast of the North Island, New Zealand.

Well worth a visit if you ever get this way, just go to the famous Waitomo Caves and keep going for an hour or so (it's mostly sealed road, but it is winding).

Black sand beaches and dramatic cliffs made of Triassic sedimentary rocks that were once part of . Rocks, full, and I mean full, of fossils, particularly the shellfish Monotis.

A tidal rock pool with a steep layered rock wall on the right and a distant figure on the far side of the pool carrying a long stick. Bulbous sea weed can be seen in and on the surface of the pool. The bright blue sky has some high wispy clouds that indicate it's a great summer's day.
A black sand beach looking (south) toward a rocky headland capped by a rugged green grass clad hill. The eagle-eyed will note that the hill is notably terraced and flat-topped. This is an old Māori pa site - a fortification that would have had a dominating view along the coast.
Examples of the Monotis fossils to be foudn at the cliffs south of Kiritehere Beach. The picture is of a jumble of grey, partially rounded rocks around 10-15 cm in size. Of the three prominent rocks in the centre of the picture, the right two have well defined fossil shellfish that resemble modern scallops. The fossils are tightly packed and overlapping. The rock on the left shows the fossils in profile showing how the shells were tightly stacked in the sediment.

cltr, to nature French
@cltr@jasette.facil.services avatar

Les diamants du Gondwana
🔸 Des diamants émergés des profondeurs de la Terre il y a 90 millions d’années éclairent l’histoire du supercontinent Gondwana.
🔸 De vieux diamants émergés des profondeurs de la Terre offrent une fenêtre directe sur le moteur de la tectonique des plaques en profondeur et sur la manière dont ce processus pourrait être lié au cycle des supercontinents.
https://actualites.uqam.ca/2023/les-diamants-du-gondwana/
diamants

XCsci, to random Finnish
@XCsci@ecoevo.social avatar

🧵

XCsci,
@XCsci@ecoevo.social avatar

The deepest splits in the tree correspond very well with distribution patterns across #Gondwana-derived landmasses

#cichlids #phylogeny #vicariance

https://www.nature.com/articles/s41467-018-05479-9

Photo credits: Wolfgang Gessl

XCsci,
@XCsci@ecoevo.social avatar
haritulsidas, to random
@haritulsidas@masto.ai avatar

Zealandia, Earth’s hidden continent, was torn from supercontinent Gondwana in a flood of fire 100 million years ago. A new study reveals that a massive volcanic eruption triggered the breakup of Gondwana and the formation of Zealandia, which is mostly submerged under the Pacific Ocean. The study sheds light on the geologic history and evolution of Zealandia, which was only recognized as a continent in 2017. https://www.livescience.com/planet-earth/geology/zealandia-earths-hidden-continent-was-torn-from-supercontinent-gondwana-in-flood-of-fire-100-million-years-ago

Syulang, to australia
bananabob, to australia
@bananabob@mastodon.nz avatar

Just in case the kids ask this question.

Why are there hopping mice in Australia but no kangaroos in Asia? It's a long story

https://theconversation.com/why-are-there-hopping-mice-in-australia-but-no-kangaroos-in-asia-its-a-long-story-209067

SKRiley_Author, to Battlemaps

Escape

When we get out of the glass bottles of our own ego,
and when we escape like squirrels turning in the
cages of our personality
and get into the forests again,
we shall shiver with cold and fright
but things will happen to us
so that we don’t know ourselves.

Cool, unlying life will rush in,
and passion will make our bodies taut with power,
we shall stamp our feet with new power
and old things will fall down,
we shall laugh, and institutions will curl
up like burnt paper.

  • D.H. Lawrence

#Forest #Poetry #Gondwana #Rainforests #ForestBathing #Escape #DHLawrence

Ceedave, to random

The #glacier went that-a-way

The #striations on this face of the #Ediacaran (ca. 560 Ma) #Squantum Member of the #Roxbury #Conglomerate were probably left by the #Pleistocene #Laurentide ice sheet, which retreated ca. 12 ka. The striations have the right orientation, from northwest to southeast.

The Squantum Member was once interpreted as a (#glacial) #tillite. The most common contemporary model is a peri-#Gondwana #debrite (#turbidite).

My #photo. #Boston #geology #NewEngland #fieldTrip

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