Along the deep ocean floor, small areas resembling clusters of golden pancake-like formations surrounded by blowing waves are not ordinary whirlpools. These structures are known as parametrescence or 'oceanic pockmarks' — a rarely known but highly transformative marine geophysical phenomenon that changes our perception of the interaction between the hydrosphere and lithosphere at deep-sea intersections. This phenomenon was first scientifically discovered in 2003 when the deep-sea submersible Alvin explored the floor of the Atlantic Ocean at the Blake Plateau, when researchers realized that not only were there pancake-like structures, but the fluid within them also contained high levels of available organic matter.
The structure forms when deep-sea thermal currents periodically increase seawater temperature and pressure, causing layers of wet sediment to liquefy and rise to the surface. There, trapped natural oil and gas are gradually released, forming a strong yet highly energy-absorbent geopolymer layer. Strong ocean winds then blow away the upper layer, leaving behind durable pancake-like structures. This process repeats, forming natural 'tanks' on the ocean floor that function as transporters of organic chemicals and heavy metals to the sea surface.
One aspect that has attracted the attention of oceanographers is the ability of these pockmarks to naturally absorb plastic. A 2019 study in the Pacific Ocean showed that parametrescence structures can trap over 50% of small plastic particles within a 500-meter radius, before eventually re-dissolving some of them back into natural cycles. However, not all plastics can be degraded — those containing synthetic polymers such as PET and polyethylene coat the outer layer of the structure, thickening it and slowing down the dissolution process. This means pockmarks also act as temporary storage sites for plastic waste on the ocean floor, which, if uncontrolled, can become long-term sources of pollution to the sea surface and eventually contaminate marine food resources.
From a microbiological perspective, in-depth findings reveal that pockmark structures contain unique microbial communities not found in ordinary deep-sea areas. Among the microbes discovered are Beggiatoa and Thiomaronas, known as hydrocarbon degraders and sulfur oxidizers. This community not only survives under high pressure and low oxygen conditions but also demonstrates significant potential for bio-remediation of organic pollutants. Green technology experts are now exploring ways to import these microbial genes into biological reactors to efficiently and cost-effectively degrade industrial chemical waste.
For climate history understanding, oceanic pockmarks also store invaluable environmental records. The sedimentary layers within them contain chemical traces from millions of years ago, including carbon, oxygen isotopes, and heavy metals corresponding to sea temperatures and volcanic activity. By using precise deep-core sampling, paleo-oceanographers can reconstruct past average sea temperatures and oxygen levels, providing clear insights into how natural climate cycles have changed alongside biological evolution and human activities. This data then becomes a critical reference for more accurate global climate simulation models.
In a global context, this phenomenon also has unseen geopolitical implications. Because pockmarks are located on the ocean floor that often serve as strategic shipping routes, the presence of these structures can influence ship navigation planning and hydrographic surveys. Several maritime nations have begun implementing interactive seafloor maps marking pockmark locations, so that research and commercial vessels can avoid potentially hazardous areas. In addition, international collaborations such as the Intergovernmental Oceanographic Commission are advancing protocols for surveying marine geophysical structures so they can be included in comprehensive policies for managing marine resources.
Why is it important for the public to know about this phenomenon? Besides being a new and fascinating focus of scientific research, oceanic pockmarks remind us how complex the marine ecosystem is and how little we understand it. It reveals a piece of the puzzle about how natural forces — from seabed pressure, deep thermal currents, to ocean winds — can form structures that absorb and store chemical substances. By raising public awareness of this phenomenon, we also promote support for ocean science, marine ecosystem protection, and holistic efforts to combat plastic pollution. Who knows, the next discovery in oceanic pockmarks may bring new possibilities in biotechnology, climate research, and sustainable resource management.
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Reference: jutaan - Wikikamus bahasa Indonesia — Web: id.wiktionary.org
Did You Know... Oceanic Pockmarks Sucking Up Millions of Tons of Plastic Each Year. Along the ocean floor, there are areas surrounded by small pancake-like formations controlled by wind — it's not an ordinary whirlpool. First discovered in the Atlantic Ocean during deep-sea exploration studies in the early 2000s, this marine geophysical phenomenon is now known to exist in almost all oceans. They function as 'open tanks' for plastic waste, while also serving as habitats for unique microorganisms involved in the marine carbon cycle. Learn how this natural structure interacts with climate change and plastic pollution — and why global scientists are now making it a key research focus to understand the future of the oceanic ecosystem.. Along the deep ocean floor, small areas resembling clusters of golden pancake-like formations surrounded by blowing waves are not ordinary whirlpools. These structures are known as parametrescence or 'oceanic pockmarks' — a rarely known but highly transformative marine geophysical phenomenon that changes our perception of the interaction between the hydrosphere and lithosphere at deep-sea intersections. This phenomenon was first scientifically discovered in 2003 when the deep-sea submersible Alvin explored the floor of the Atlantic Ocean at the Blake Plateau , when researchers realized that not only were there pancake-like structures, but the fluid within them also contained high levels of available organic matter.
The structure forms when deep-sea thermal currents periodically increase seawater temperature and pressure, causing layers of wet sediment to liquefy and rise to the surface. There, trapped natural oil and gas are gradually released, forming a strong yet highly energy-absorbent geopolymer layer. Strong ocean winds then blow away the upper layer, leaving behind durable pancake-like structures. This process repeats, forming natural 'tanks' on the ocean floor that function as transporters of organic chemicals and heavy metals to the sea surface.
One aspect that has attracted the attention of oceanographers is the ability of these pockmarks to naturally absorb plastic. A 2019 study in the Pacific Ocean showed that parametrescence structures can trap over 50% of small plastic particles within a 500-meter radius, before eventually re-dissolving some of them back into natural cycles. However, not all plastics can be degraded — those containing synthetic polymers such as PET and polyethylene coat the outer layer of the structure, thickening it and slowing down the dissolution process. This means pockmarks also act as temporary storage sites for plastic waste on the ocean floor, which, if uncontrolled, can become long-term sources of pollution to the sea surface and eventually contaminate marine food resources.
From a microbiological perspective, in-depth findings reveal that pockmark structures contain unique microbial communities not found in ordinary deep-sea areas. Among the microbes discovered are Beggiatoa and Thiomaronas , known as hydrocarbon degraders and sulfur oxidizers. This community not only survives under high pressure and low oxygen conditions but also demonstrates significant potential for bio-remediation of organic pollutants. Green technology experts are now exploring ways to import these microbial genes into biological reactors to efficiently and cost-effectively degrade industrial chemical waste.
For climate history understanding, oceanic pockmarks also store invaluable environmental records. The sedimentary layers within them contain chemical traces from millions of years ago, including carbon, oxygen isotopes, and heavy metals corresponding to sea temperatures and volcanic activity. By using precise deep-core sampling, paleo-oceanographers can reconstruct past average sea temperatures and oxygen levels, providing clear insights into how natural climate cycles have changed alongside biological evolution and human activities. This data then becomes a critical reference for more accurate global climate simulation models.
In a global context, this phenomenon also has unseen geopolitical implications. Because pockmarks are located on the ocean floor that often serve as strategic shipping routes, the presence of these structures can influence ship navigation planning and hydrographic surveys. Several maritime nations have begun implementing interactive seafloor maps marking pockmark locations, so that research and commercial vessels can avoid potentially hazardous areas. In addition, international collaborations such as the Intergovernmental Oceanographic Commission are advancing protocols for surveying marine geophysical structures so they can be included in comprehensive policies for managing marine resources.
Why is it important for the public to know about this phenomenon? Besides being a new and fascinating focus of scientific research, oceanic pockmarks remind us how complex the marine ecosystem is and how little we understand it. It reveals a piece of the puzzle about how natural forces — from seabed pressure, deep thermal currents, to ocean winds — can form structures that absorb and store chemical substances. By raising public awareness of this phenomenon, we also promote support for ocean science, marine ecosystem protection, and holistic efforts to combat plastic pollution. Who knows, the next discovery in oceanic pockmarks may bring new possibilities in biotechnology, climate research, and sustainable resource management.
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Reference: jutaan - Wikikamus bahasa Indonesia — Web: id.wiktionary.org https://id.wiktionary.org/wiki/jutaan
