Tag

Foraminifera

All articles tagged with #foraminifera

science21 days ago•7 min saved

Ancient Seas, Modern Cliffs: New Study Rewrites the Twelve Apostles’ Origin

A new study in the Australian Journal of Earth Sciences shows the Twelve Apostles formed from Miocene-era seabed rocks, with the Port Campbell Limestone deposited roughly 14 to 8.6 million years ago and a warm interval around 14.1–13.8 million years ago recorded by abundant foraminifera fossils. Tectonic uplift began about 8.6 million years ago, lifting the rocks above sea level and enabling coastal erosion to sculpt headlands, arches, and eventually the sea stacks—an ongoing process following the last ice age. The rocks are ancient, but the iconic formations are geologically recent, highlighting how long-term tectonics and coastal dynamics shape the landscape.”

via Indian Defence Review|

#coastal-erosion #earth-science #foraminifera

science2 months ago•5 min saved

Humans Are Lengthening Earth's Day, New Study Finds

Researchers show Earth's day is lengthening by about 1.33 milliseconds per century due to climate-driven mass shifts from melting ice, using fossil foraminifera and a physics-informed deep learning model; the trend could soon surpass the Moon's influence, with implications for communications and space navigation, per a Journal of Geophysical Research: Solid Earth study.

via ScienceAlert|

#climate-change #earth-rotation #foraminifera

science2 months ago•50 min saved

Climate change lengthens Earth's day, study finds

A study by researchers from the University of Vienna and ETH Zurich finds Earth’s day is lengthening by about 1.33 milliseconds per century due to climate‑driven mass redistribution from melting polar ice and mountain glaciers, moving water from land to oceans and slowing Earth's rotation. This unprecedented pace in 3.6 million years could subtly affect GPS satellites and space missions over time, though the change is far too small for people to notice; by the end of the century, climate-driven effects could rival the Moon's influence on day length.

via Ground News|

#climate-change #earth-rotation #foraminifera

climate-change2 months ago•17 min saved

Earth’s Day Lengthening Hits Unprecedented Pace as Oceans Grow

A new study using benthic foraminifera fossils and a physics‑informed deep‑learning model finds Earth’s rotation is slowing at its fastest rate in millions of years due to climate-driven continental‑ocean mass redistribution. From 2000–2020, the length of a day increased by about 1.33 milliseconds per century, the most rapid slowdown since the Late Pliocene. The extra ocean mass near the equator drags on Earth’s rotation, and researchers say by the end of the 21st century climate change could affect day length even more than the Moon, with even millisecond changes impacting precise navigation.

via Gizmodo|

#climate-change #earth-science #foraminifera