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We are boldly exploring our unknown Ocean to excite interest and inform the wise stewardship of our planet.

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The Doldrums Fracture Zone
Our planet’s longest mountain range is located in the center of the Atlantic Ocean: the Mid-Atlantic Ridge. This submarine volcanic mountain chain stretches for more than 16,000 kilometers, shaping Earth’s geology where tectonic plates drift apart. As the plates separate, mantle material rises, partially melts, and generates magma that forms new oceanic crust. The movement of plates forms wrinkles and lines along the planet’s surface, known as fault zones, which tell the story of Earth’s tectonic history. These fault zones circulate water into the seafloor and through the crust, later releasing it with new chemical compositions— some of which feed deep-sea bacteria that fuel thriving ecosystems in the deepest, darkest parts of the Ocean. While chemosynthetic ecosystems are well documented along the ridge, little is known about what lives on the fault zones. The Doldrums Megatransform System is one of these fault zones formed where offset ridge segments are linked by transform faults as the Atlantic seafloor spreads apart. Here, tectonic plates scrape and slide past one another, creating fascinating geologic formations like fault scarps and sedimented basins, both of which can host areas of chemically altered seawater and deep-sea ecosystems. Dr. Aaron Micallef of MBARI (Monterey Bay Aquarium Research Institute) and the international team will travel to the Doldrums Fracture Zone to map and identify interesting geological features, and then use ROV SuBastian to visualize them. Key to their work will be The Childlike Empress AUV, which will both create high-resolution maps of the seafloor and use its sensors to sniff out interesting chemicals that indicate venting. This expedition marks the first time Schmidt Ocean Institute’s new AUV will be used for scientific research.
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In the coming years, our expeditions will explore understudied regions around all seven continents in our global Ocean.

Latest Expedition

See all

The Doldrums Fracture Zone
Our planet’s longest mountain range is located in the center of the Atlantic Ocean: the Mid-Atlantic Ridge. This submarine volcanic mountain chain stretches for more than 16,000 kilometers, shaping Earth’s geology where tectonic plates drift apart. As the plates separate, mantle material rises, partially melts, and generates magma that forms new oceanic crust. The movement of plates forms wrinkles and lines along the planet’s surface, known as fault zones, which tell the story of Earth’s tectonic history. These fault zones circulate water into the seafloor and through the crust, later releasing it with new chemical compositions— some of which feed deep-sea bacteria that fuel thriving ecosystems in the deepest, darkest parts of the Ocean. While chemosynthetic ecosystems are well documented along the ridge, little is known about what lives on the fault zones. The Doldrums Megatransform System is one of these fault zones formed where offset ridge segments are linked by transform faults as the Atlantic seafloor spreads apart. Here, tectonic plates scrape and slide past one another, creating fascinating geologic formations like fault scarps and sedimented basins, both of which can host areas of chemically altered seawater and deep-sea ecosystems. Dr. Aaron Micallef of MBARI (Monterey Bay Aquarium Research Institute) and the international team will travel to the Doldrums Fracture Zone to map and identify interesting geological features, and then use ROV SuBastian to visualize them. Key to their work will be The Childlike Empress AUV, which will both create high-resolution maps of the seafloor and use its sensors to sniff out interesting chemicals that indicate venting. This expedition marks the first time Schmidt Ocean Institute’s new AUV will be used for scientific research.
Read More

From grants for caregivers to an artist-at-sea residency, our programs strive to deepen knowledge and inspire a connection with our planet’s life support system.

Latest Expedition

See all

The Doldrums Fracture Zone
Our planet’s longest mountain range is located in the center of the Atlantic Ocean: the Mid-Atlantic Ridge. This submarine volcanic mountain chain stretches for more than 16,000 kilometers, shaping Earth’s geology where tectonic plates drift apart. As the plates separate, mantle material rises, partially melts, and generates magma that forms new oceanic crust. The movement of plates forms wrinkles and lines along the planet’s surface, known as fault zones, which tell the story of Earth’s tectonic history. These fault zones circulate water into the seafloor and through the crust, later releasing it with new chemical compositions— some of which feed deep-sea bacteria that fuel thriving ecosystems in the deepest, darkest parts of the Ocean. While chemosynthetic ecosystems are well documented along the ridge, little is known about what lives on the fault zones. The Doldrums Megatransform System is one of these fault zones formed where offset ridge segments are linked by transform faults as the Atlantic seafloor spreads apart. Here, tectonic plates scrape and slide past one another, creating fascinating geologic formations like fault scarps and sedimented basins, both of which can host areas of chemically altered seawater and deep-sea ecosystems. Dr. Aaron Micallef of MBARI (Monterey Bay Aquarium Research Institute) and the international team will travel to the Doldrums Fracture Zone to map and identify interesting geological features, and then use ROV SuBastian to visualize them. Key to their work will be The Childlike Empress AUV, which will both create high-resolution maps of the seafloor and use its sensors to sniff out interesting chemicals that indicate venting. This expedition marks the first time Schmidt Ocean Institute’s new AUV will be used for scientific research.
Read More

Experience the wonder of our global Ocean via immersive galleries of art, scientific discoveries, and film.

Latest Expedition

See all

The Doldrums Fracture Zone
Our planet’s longest mountain range is located in the center of the Atlantic Ocean: the Mid-Atlantic Ridge. This submarine volcanic mountain chain stretches for more than 16,000 kilometers, shaping Earth’s geology where tectonic plates drift apart. As the plates separate, mantle material rises, partially melts, and generates magma that forms new oceanic crust. The movement of plates forms wrinkles and lines along the planet’s surface, known as fault zones, which tell the story of Earth’s tectonic history. These fault zones circulate water into the seafloor and through the crust, later releasing it with new chemical compositions— some of which feed deep-sea bacteria that fuel thriving ecosystems in the deepest, darkest parts of the Ocean. While chemosynthetic ecosystems are well documented along the ridge, little is known about what lives on the fault zones. The Doldrums Megatransform System is one of these fault zones formed where offset ridge segments are linked by transform faults as the Atlantic seafloor spreads apart. Here, tectonic plates scrape and slide past one another, creating fascinating geologic formations like fault scarps and sedimented basins, both of which can host areas of chemically altered seawater and deep-sea ecosystems. Dr. Aaron Micallef of MBARI (Monterey Bay Aquarium Research Institute) and the international team will travel to the Doldrums Fracture Zone to map and identify interesting geological features, and then use ROV SuBastian to visualize them. Key to their work will be The Childlike Empress AUV, which will both create high-resolution maps of the seafloor and use its sensors to sniff out interesting chemicals that indicate venting. This expedition marks the first time Schmidt Ocean Institute’s new AUV will be used for scientific research.
Read More

More Questions Than Answers

The excellent data coming from Falkor’s high-resolution multibeam sonars have revealed breathtaking, never-before-seen details on every feature we’ve mapped so far in the Papahānaumokuākea Marine National Monument.

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The excellent data coming from Falkor’s high-resolution multibeam sonars

Both Nero and Ladd are known as guyots. Named after geologist Arnold H. Guyot, the term refers to a flat-topped volcano that has been above sea level at some point in geological history, leading to erosion that cut its top off. In contrast, a seamount is a structure with a summit at least 1,000 meters above the surrounding seafloor that retains a conic volcanic shape because it never reached the surface.

As discussed in the previous blog about Midway Atoll

This leads to the main question we’re asking, which is whether these might be mesophotic reefs, which harbor corals and associated communities at water depths from 50 to 150 meters. Light penetration is low at these depths, but it is enough to support corals. Mesophotic reefs are found off of Maui in the main Hawaiian islands, so we know it is possible that there are live corals.

On the other hand, divers with the Monument have done extensive work in mesophotic depths on neighboring Midway, Pearl and Hermes, and Kure Atolls and have not yet found coral ecosystems. So, through our work on this cruise we’re raising many possibilities for future research using remotely operated vehicles, autonomous undersea vehicles, submersibles, and/or deep scuba diving techniques to investigate the tops of these guyots. We’re also planning to look for similar structures during continued mapping on the 2nd Falkor Monument mapping cruise that begins in May.

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