first probable impact crater discovered in spain
Location of the crater center and 20-kilometer radius of the area affected by the impact in the Alhabia-Tabernas basin. Credit: Sánchez-Garrido et al.

The first probable impact crater in Spain has been identified in the southern province of Almeria. The discovery was presented last week at the Europlanet Science Congress (EPSC) 2022 by Juan Antonio Sánchez Garrido of the University of Almeria.

While around 200 impact structures have been identified around the world, the study is the first to identify signs of an impact crater on the Iberian Peninsula. The discovery is the result of 15 years of research by an international team of scientists from the University of Almeria, the Astrobiology Center of Madrid, the University of Lund and the University of Copenhagen.

Prof Sánchez Garrido says, “We believe that the impact event occurred around 8 million years ago. We have investigated numerous aspects of the geology, minerology, geochemistry and geomorphology of the region. The basins of Alhabia and Tabernas in the area are filled with sediments dating back between 5 and 23 million years, and they overlie older metamorphic rocks. Much of the impact structure is buried by more modern sediments, but erosion has exposed it and opened up the opportunity for studies.”

The crater itself is thought to be about 4 kilometers in diameter, and it is surrounded by a larger structure about 20 kilometers across where the impact caused the sedimentary strata to collapse.

first probable impact crater discovered in spain
Much of the impact structure is buried by the most recent sediments. The crater itself is 4 kilometers in diameter and is buried at a depth of 1000 m. The edge of the structure reaches a diameter of 20 kilometers. Credit: Sánchez-Garrido et al 2022.
first probable impact crater discovered in spain
Evidence for the impact crater includes several examples of ‘shocked’ quartz grains in breccia – a sedimentary rock type with large fragments cemented into a finer-grained matrix. The grains show signs of being deformed in the enormous pressures of the impact, which were between 10 and 30 gigapascals. Credit: Sánchez-Garrido et al 2022.
first probable impact crater discovered in spain
Thin sections showing deformations in three quartz grains, produced by shock effects, in an impact breccia at Tabernas. Credit: Sánchez-Garrido et al 2022.

Evidence for the impact crater includes several examples of “shocked” quartz grains in breccia—a sedimentary rock type with large fragments cemented into a finer-grained matrix. The grains show signs of being deformed in the enormous pressures of the impact, which were between 10 and 30 gigapascals.

“If the crater discovery is confirmed, it would not only be exciting from a scientific perspective, but would also be a wonderful addition to the scientific and touristic attractions of the province of Almeria,” said Prof Sánchez Garrido. More information: Juan Antonio Sánchez Garrido et al, A probable impact structure in Betic Cordillera, Almeria, SE Spain, Proceedings of the Europlanet Science Congress (2022). DOI: 10.5194/epsc2022-217

Conference: www.epsc2022.eu/

TECH NEWS RELATED

Scientists Discover That Binge-Eating Sweet Treats Is Influenced by Gut Microbiome

According to new California Institute of Technology (Caltech) research in mice, specific gut bacteria may suppress binge eating behavior. Gut Microbes Influence Binge-Eating of Sweet Treats in Mice We have all been there. You just meant to have a single Oreo cookie as a snack, but then you find ...

View more: Scientists Discover That Binge-Eating Sweet Treats Is Influenced by Gut Microbiome

Bayesian search: A simple rule to find stuff you’ve lost

When you lose your phone, wallet, or keys, you may resort to a few tricks to relocate them. Maybe you’ll retrace your steps. Maybe you’ll look in each of the locations that you typically put them. Or perhaps you’ll try to remember every unusual place you’ve been lately. Each ...

View more: Bayesian search: A simple rule to find stuff you’ve lost

What We’re Playing: ‘Star Trek Timelines’ Free-to-Play in the Final Frontier

Star Trek Timelines Ever since I was 11, I’ve wanted to be in Starfleet. Unfortunately for me, Star Trek isn’t real. And even if it were, Starfleet won’t be founded for another century. Fortunately for me, Star Trek Timelines exists. This fantastic game lets me put on my virtual ...

View more: What We’re Playing: ‘Star Trek Timelines’ Free-to-Play in the Final Frontier

Funko Pop spoils the design of a major MCU Phase 5 villain

Marvel fans are understandably excited about seeing Kang the Conquerer (Jonathan Majors) for the first time since the Loki season 1 finale in Ant-Man and the Wasp: Quantumania, but he won’t be the only villain present in the upcoming sequel. In fact, we will meet a number of characters we ...

View more: Funko Pop spoils the design of a major MCU Phase 5 villain

Hackers use new, fake crypto app to breach networks, steal cryptocurrency

The North Korean ‘Lazarus’ hacking group is linked to a new attack spreading fake cryptocurrency apps under the made-up brand, “BloxHolder,” to install the AppleJeus malware for initial access to networks and steal crypto assets. According to a joint FBI and CISA report from February 2021, AppleJeus has been ...

View more: Hackers use new, fake crypto app to breach networks, steal cryptocurrency

How to Create and Join Amazon Prime Video Watch Party

With the global streaming market booming, it is no surprise that streaming apps have introduced features to take this experience to the next level. While hosting and joining Watch Parties is becoming more common, unlike Amazon Prime Video, not many streaming platforms provide in-built support for it. So let’s have ...

View more: How to Create and Join Amazon Prime Video Watch Party

Advanced “Lab on a Chip” – Scientists Have Created a Powerful, Ultra-Tiny Spectrometer

A picture of the spectrometer on a chip. Credit: Oregon State The tool opens the door to the widespread use of portable spectrometers. Researchers in the field of optical spectrometry have created a better instrument for measuring light. This advancement could improve everything from smartphone cameras to environmental monitoring. ...

View more: Advanced “Lab on a Chip” – Scientists Have Created a Powerful, Ultra-Tiny Spectrometer

Possible that Twitter gave preference to leftists during Brazil election: Elon Musk

ETtech Representative image SAO PAULO – Twitter owner Elon Musk said on Saturday he thought it was “possible” that personnel at the social media firm gave preference to left-wing candidates during Brazil’s election this year, without providing evidence.Musk completed his acquisition of Twitter on Oct. 27, just days before Brazil’s ...

View more: Possible that Twitter gave preference to leftists during Brazil election: Elon Musk

Northrop Grumman Unveils US Air Force's B-21 Stealth Nuclear Strategic Bomber

Archaeologists Uncover 1,900-Year-Old Snacks Underneath Rome's Ancient Colosseum

Motorola Edge 30 Fusion Launches In The US With The Most Unique Color Ever

How giant-faced owls snag voles hidden in snow

Black and minoritized ethnic communities at disproportionate risk of homelessness in the UK

Crypto broker Genesis owes Gemini's customers $900 million: report

China's Shenhou-14 crew to return at winter night, landing site ready

Rackspace: Ongoing Exchange outage caused by security incident

4 Best Closet Door Light Switches That You Can Buy

When Is It Time to Upgrade Your Smartphone?

1400% Increase: Sexual Assault-Related ER Visits Have Skyrocketed

Researchers may have discovered how much exercise it takes to offset a day of sitting

OTHER TECH NEWS

Top Car News Car News