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Yearly Archives: 2019

Horseshoe Bend, Arizona

Horseshoe Bend, Arizona

plate boundaries

What are the different types of plate tectonic boundaries?

K-T Boundary / K-Pg Boundary

K-T Boundary “Cretaceous-Tertiary Boundary”

Badlands near Drumheller, Alberta

K-Pg Boundary “Cretaceous–Paleogene Boundary”

Fossilized fish piled one atop another

66-million-year-old deathbed linked to dinosaur-killing meteor

In ancient oceans that resembled our own, oxygen loss triggered mass...

San Andreas Fault

Signs of 1906 earthquake revealed in mapping of offshore northern San...

Deep below the Earth in the Tonga-Fiji region of the South Pacific, one enormous earthquake triggered another.

Massive earthquakes provide new insight into deep Earth

Massachusetts State Geologist Stephen Mabee and colleagues recently annoucned that newly digitized surficial geology maps of the entire state are available online now. They provide details of what Mabee calls the 'kitty litter' mix of glacial tills, various sands and gravels on the earth's surface. Credit: USGS/MassGIS

State geologist, partners create new surface geology maps for Massachusetts

Graphite & Hexagonal Diamond

Cool Earth theory sheds more light on diamonds

Cross-sections of Earth’s mantle down to 1,400 km depth showing changes in its flow as ancient ocean beds fall into Earth’s deep interior.

Earth’s deep mantle flows dynamically

Scientists from The Australian National University have discovered the have discovered that 558 million-year-old Dickinsonia fossils do not reveal all of the features of the earliest known animals, which potentially had mouths and guts.

Mystery shrouding oldest animal fossils solved

Earth's mantle (dark red) lies below the crust (brown layer near the surface) and above the outer core (bright red).

The solid Earth breathes

Fossil whale barnacles from the Pleistocene were retrieved from the Burica Peninsula of Panama for analyses.

Fossil barnacles reveal prehistoric whale migrations

From the field on Svalbard, showing an ancient channel extending into the Barents Sea.

The largest delta plain in Earth’s history

Scientists say the fossils have been "exquisitely" preserved. Credit: Ao Sun

Huge fossil discovery made in China’s Hubei province

Tyrannosaurus rex

World’s Biggest Tyrannosaurus rex

Mount Hood

Scientists argue for more comprehensive studies of Cascade volcanoes

Feathers revealed in a ~125 million-year-old fossil of a bird hatchling shows it came "out of the egg running". Specimen MPCM-LH-26189 from Los Hoyas, Spain is preserved between two slabs of rock: (a) 'counter' slab under normal light (b) Laser-Stimulated Fluorescence (LSF) image combining the results from both rock slabs. This reveals brown patches around the specimen that include clumps of elongate feathers associated with the neck and wings and a single long vaned feather associated with the left wing. (c) Normal light image of the main slab. Scale is 5mm.

Ancient birds out of the egg running

Volcano

Volcano cliffs can affect monitoring data

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