Flux-stiri

The Mysteries of Antarctica’s Blood Falls: Unveiling a 1.5 Million-Year-Old Secret

Blood Falls, a remarkable natural wonder in Antarctica, holds secrets far more intriguing than its initial appearance suggests. Recent research has provided fresh insights into how water emerges from this enigmatic formation, adding another piece to a puzzle scientists have been attempting to solve for over a century.

In 1911, Australian geologist Griffith Taylor discovered this site and attributed its reddish hue to algae, naming it Blood Falls. However, his assumption was incorrect, as neither blood nor algae were responsible for the coloration.

In reality, the phenomenon results from iron-rich saltwater trapped beneath the northern edge of Taylor Glacier for at least 1.5 million years. This ancient marine water pocket became isolated from the ocean as the glacier advanced.

Decoding the ‘Bleeding’ Phenomenon

Over time, the salt concentration in this trapped water increased, transforming it into a brine that no longer freezes at typical temperatures. When the brine reaches the surface and interacts with oxygen, the iron oxidizes in a process similar to rusting, giving it a red appearance.

For decades, the method by which this brine could rise from hundreds of meters below the surface was unknown. In 2017, researchers from the University of Alaska Fairbanks mapped the liquid’s path using radar and discovered a 300-meter-long network of pressurized channels within the glacier.

Solving Another Mystery

How does liquid water flow through such a cold glacier? The high salt content lowers the water’s freezing point, maintaining its liquid state. Additionally, when the brine does freeze, it releases heat, warming the surrounding ice and keeping the channels open.

According to researchers, Taylor Glacier is the coldest known glacier with permanent flowing water. Yet, the most fascinating aspect is not the chemistry but the life existing within it.

Hidden hundreds of meters under the ice, with no sunlight or oxygen for over a million years, entire communities of bacteria thrive. These microorganisms derive energy from sulfates, as other resources are unavailable in this harsh environment.

They have never been exposed to sunlight nor required oxygen to survive. Microbiologist Jill Mikucki from the University of Tennessee spent years obtaining usable water samples, revealing an active and thriving microbial ecosystem.

Blood Falls Continues to Reveal Insights

A recent study focused on the episodes of brine release. In September 2018, researchers coincidentally had three monitoring systems near Taylor Glacier: a GPS station tracking the glacier’s surface, a camera capturing daily images of Blood Falls, and temperature sensors in a nearby lake.

Although these tools were not intended for observing such events, they captured the precise moment of a brine outflow occurrence.

Over the following weeks, the glacier’s surface descended by about 15 millimeters, and its movement speed decreased by nearly 10%. Concurrently, temperature anomalies were detected in the lake, and new red spots appeared daily at Blood Falls.

In summary, researchers directly observed the glacier’s transformation as the brine reached the surface.






Împotriva articolelor redacției noastre, persoanele nemulțumite pot formula Contestație în termen de 10 zile de la publicarea articolului, la judecătoria Orășenească nr. 1 München Bayern Deutschland, in conformitate cu Legea federală Germană. Considerăm că nu se pot formula acțiuni la instanțele din România deoarece nici o persoană care activează în trustul nostru nu poate fi extrasă de sub jurisdicția federală germană. Considerăm că redacția noastră nu răspunde în fața autorităților din România ci doar celor federale sau civile germane. deoarece legea română nu are efecte de extraneitate asupra redacției chiar dacă subiectul știrilor face obiectul unor evenimente sau persoane din România și sunt scrise în limba română. Limba română nu este izvor de extraneitate a legii.

(Visited 3 times, 3 visits today)
Vidjean Mihai
Vidjean Mihai
Mihai Vidjean - autor articole Absolvent Comunicare si Jurnalism, profesor „Științe și metode de investigare jurnalistică office@ziardestiri.ro
https://ziardestiri.ro/

Lasă un răspuns

Adresa ta de email nu va fi publicată. Câmpurile obligatorii sunt marcate cu *