Geology

One of the oldest rock deposits is found in the Jack Hills in Western Australia, and it contains crystals of the mineral zircon. A researcher holds a rock from the Jack Hills | Curtin University

The oldest lake in the world

  • One response
Did freshwater, and life on Earth, begin earlier than we thought?
New models suggest that Pluto and Charon were formed by a giant collision. This composite of enhanced color images of Pluto (lower right) and Charon (upper left) was taken by the New Horizons spacecraft as it passed through the Pluto system in 2015. Pluto and Charon are shown at approximately their relative sizes, but their true separation is not at the correct distance. Credit: NASA/JHUAPL/SwRI

How Pluto and its moon Charon were formed from a giant collision

  • 2 תגובות
New research reveals that Pluto and its large moon Charon formed from a unique "kiss and capture" process following a giant collision, with significant implications for understanding the solar system.
Figure 2: The main characteristics of the Earth's motion in space that affect the radiation it receives from the Sun. Left: the degree of ellipticity of the orbit around the sun, the change in this feature is characterized by cycles of about 400,000 and about 100,000 years. In the center: the degree of inclination of the earth's rotation axis towards the sun, the change in this feature is characterized by a cycle of about 40,000 years. On the right - the direction to which the Earth's rotation axis points in space, the change in this feature is characterized by a cycle of about 20,000 years. Source: Wikimedia.

A new study reveals: the effect of climate change on the Levant basin over the past 5 million years

  • One response
Researchers from the Geological Survey of Israel have identified climate cycles and their effects on the accumulation of sand and clay at the bottom of the Mediterranean Sea, combining historical findings and astronomical theory
A graphic illustration of the S2 meteorite impact and its immediate effects. Credit: Nadia Drabon

The asteroid the size of four Everests that changed the course of life on Earth

  • No comments
It turns out that these giant meteorites actually had a positive effect on life compared to the later extinction-causing meteorites
The Nile and the pyramids of Aswan in the background. Illustration: depositphotos.com

The increase in water flow and the flood area of ​​the Nile was the catalyst for the flourishing of ancient Egyptian culture

  • 2 תגובות
Recent research reveals that a significant change in the course of the Nile River about 4,000 years ago expanded the floodplain near Luxor, which could have caused the prosperity of agriculture in ancient Egypt and influenced the location of sites
The Cambrian Bang. Illustration: depositphotos.com

New findings regarding the connection between the increase of oxygen in the atmosphere and the development of complex life

  • 3 תגובות
Hebrew University researchers have revealed new findings regarding the connection between the increase in oxygen in the atmosphere and oceans on Earth, and the development of complex life. The study indicates that the rise of oxygen occurred after the development of life
A study predicts the extension of the Strait of Gibraltar subduction zone into the Atlantic Ocean, which could create an Atlantic Ring of Fire within about 20 million years. This research sheds light on the dynamic nature of ocean life cycles and the formation of new reduction zones, using advanced computational models. It offers new insights into the activity of the subduction zone in Gibraltar and its implications for seismic activity, emphasizing the importance of preparedness and studying the process of ocean contraction as a key process in the geological evolution of the Earth. Credit: Mr Elliot Lim, CIRES &NOAA/NCEI

As the oceans close - new research indicates that the Atlantic Ocean will "soon" enter its sunset phase

  • 5 תגובות
Research shows for the first time how direct invasion of mitigation zones can occur. The 3D computational model, driven by gravity, predicts that the subduction zone currently under the Strait of Gibraltar will spread further
Image 1. Topography and SAR image of the research area on Venus. Color indicates altitudes, measured relative to the planet's mean radius from Magellan's reticulated altitude data. The X and Y axes represent geographic longitude and latitude of the planet. From the study.

A new analysis of data from the XNUMXs has proven that volcanoes are still erupting on Venus today

  • No comments
The article "Surface changes observed on a volcano on Venus during the Magellan mission" describes the analysis of the observations in which surface changes were discovered on the Sif Mons volcano during the Magellan spacecraft mission
Traffic jam in Tel Aviv, February 2022. Photo: Avi Blizovsky

Feel Tel Aviv from below

Researchers examined what happens under the city's asphalt non-stop - and what seismic tremors cause cars, pedestrians and cyclists
A chain reaction of tectonic plates. Courtesy of the researchers

The movement of the tectonic plates works according to a chain reaction

  • 4 תגובות
An international group of geologists, including researchers from Ben Gurion and Tel Aviv University, discovered a connection between earthquakes in different parts of the world
Measurements from the floor that collapsed during the burning of Jerusalem during the destruction of the First Temple. Photo: Shai Halevi, Antiquities Authority

The Earth's magnetic field tells the story of the destruction of the First Temple

  • 6 תגובות
On the right - Antarctica as it actually looks - covered in ice. On the left - a map drawn by the British Antarctic Survey with the help of NASA data of the route of the terrain under the ice. Photo: British Antarctic Survey

Antarctica merged into one plate about 11 million years ago

  • No comments

For the first time, a model was published that explains supersonic earthquakes

  • 2 תגובות
The ruins of Beit Shan, as a result of the earthquake in 749 AD. Photo: shutterstock

"The segment of the Syrian-African rift in the Kinneret area was quiet for 1,200 years and woke up recently"

  • 4 תגובות
Illustration: pixabay.

Research: The prediction and warning systems against earthquakes are ineffective

  • 5 תגובות
Imprint "Lamelech" on the handle of a pitcher from Ramat Rachel. Photo: Oded Lifshitz.

Scientists: The weakening of the Earth's magnetic field is not a new phenomenon

  • 2 תגובות
The blocks of concrete in New York City will also be preserved and affect the geology of the earth. Photo: Chris Chabot.

Questions for the future of humanity: What geological imprint will we leave behind?

  • 3 תגובות
"Green rust" (left), which was produced in Halevi's laboratory under conditions similar to those that existed in the oceans from the Precambrian period. Electron micrographs (right) show thin, hexagonal-shaped plaques characteristic of "green rust." Source: Weizmann Institute magazine.

The mystery of the green rust

  • One response
A high-resolution digital model created from the stereoscopic images obtained by NASA's MESSENGER spacecraft has revealed the Great Valley of Mercury shown here in XNUMXD. Image: NASA/Johns Hopkins University, Smithsonian Institution, DLR

A large valley was discovered in the planet Hema - indicating the process of the planet's contraction

  • 3 תגובות
The eastern Mediterranean, west of Cyprus and east of Crete (the shaded figure on the map), preserves remnants of an ancient ocean.

The floor of the eastern Mediterranean preserves an ancient ocean

  • One response
Open mine in New Zealand. Photo: shutterstock

the anthropogenic period

  • 3 תגובות
Simulation of the Earth's internal structure within a simulation of the movement of the tectonic plates. Courtesy of IBM

IBM researchers share an award in the field of parallel computing for simulating the movement of tectonic plates and earthquakes

  • One response
Saar River Arch, Germany. Photo: shutterstock

The secret of deciphering changes in the pattern of rivers

  • 2 תגובות
A laboratory model of a periodically erupting geyser with a bubble trap. Credit: Esther Edelstein and colleagues, Journal Of Volcanology And Geothermal Research, Volume 285, September 15, 2014 (geyser cycle model).

The geysers erupting like clockwork / Sara Levin

  • 2 תגובות
Earth's layers - solid inner core, liquid outer core, mantle and crust. Illustration: shutterstock

The earthquakes that tell the story of the Earth's core

  • 6 תגובות
Map of Nepal with the major earthquake of April 25, 2015 and the aftershocks that followed. Figure: US Geological Survey

Why did we go down the Richter scale?

  • 8 תגובות
Dead Sea cores. Photo: Dr. Michael Lazar, University of Haifa

In the past there were periods of drought lasting hundreds of years in the Land of Israel

  • 7 תגובות
Dr. Mark Levin of the University of Utah next to the reconstruction of the dinosaur Lythronax argestes at the Museum of Natural History in Salt Lake City

A giant carnivorous dinosaur discovered in the US may be one of the ancestors of the T-Rex

  • 5 תגובות
Ancient soils in South Africa containing layers billions of years old. Courtesy of researchers from the University of Copenhagen and the University of British Columbia.

Oxygen appeared in the atmosphere up to 700 million years earlier than we previously thought

  • 5 תגובות
Pictured: Damage to the city of Anchorage in Alaska after an earthquake that occurred there on March 27, 1964, at the same time that solar activity was weaker than average. Photo: US Army.

Exclusive: Oil and gas extraction from oil shale causes man-made earthquakes

  • 6 תגובות
Image of the sun from April 12, 2013, photo: SDO/AIA

The sun does not cause earthquakes

  • 11 תגובות
A member of the Israeli delegation, Yuval Elmaleh, inside the "Krobera and Voronia" cave. Photography by Boaz Langford

A journey to the bowels of the earth - researchers from the Hebrew University descended to a depth of more than two thousand meters

  • 19 תגובות
Pyrite - fool's gold. From Wikipedia

The sulfur cycle: not what you thought

  • 3 תגובות
Dr. Roi Granot. Photo: Ben-Gurion University

A research grant will assist in understanding the formation of the Eastern Mediterranean

  • 2 תגובות
Nicholas Steno. From Wikipedia

Nikolaos Steno - the man who laid the foundation for several different fields of science

  • 3 תגובות
Dotan Berger

Dotan Berger from Ramat HaNegev won a bronze medal in the Geology Olympiad

  • No comments
A nugget of raw gold from Venezuela. From Wikipedia

The gold came to us from the sky in meteorites

  • 6 תגובות
Interstate 880 Oakland, California, after the 1989 earthquake. From Wikipedia

Seismology - seconds before the big earthquake / Richard Allen

  • No comments
Prof. Yossi Hazor. Photo: Dr. Bao Huirong

How do you prepare a building for an earthquake?

  • No comments
Prof. Zvi Ben Avraham (right) and Tal Hartman

A comprehensive survey to locate unknown fragments on the bottom of the Red Sea in Eilat and Aqaba

  • One response
Prof. Jacob Bar

return the greenhouse gases to the earth

  • 6 תגובות
Artist's perception - the sun as a changing star that seems very fixed to us

The Age of the Sun and Darwinism

  • 635 תגובות
Rain forest, from Wikipedia

Are there "positive" sides to warming?

  • 26 תגובות
Sinkhole in the Dead Sea. Photographed by Eliezer Schwartz, Jerusalem. From: Wikipedia

Comprehensive scientific drilling in the Dead Sea

  • 6 תגובות
Lake Nyos

"vibrant" lakes

  • 4 תגובות
Sinkhole in the Dead Sea. Photographed by Eliezer Schwartz, Jerusalem. From: Wikipedia

The Dead Sea - a proposal for a (partial) solution

  • 10 תגובות
Loom slopes in the Mandel'shtam crater on the moon. The slopes were cut by small impact craters. Photo: NASA's LRO spacecraft

NASA discovery: the moon is shrinking

  • 9 תגובות
Mountains on Titan. Photo: NASA's Cassini spacecraft

Titan's contractions give birth to mountains

  • 2 תגובות
dust storm

dust

  • One response
Prof. Yehoshua Kolodani

The Israel Prize for Earth Science Research will be awarded to Professor Yehoshua Kolodani from the Hebrew University

  • One response