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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

Gravity and the Search for the Secret Chamber

Did you know that even on the calmest day, the sea surface is not as flat as it seems?

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Did you know that even on the calmest day, the sea surface is not as flat as it seems? The sea level at a given spot actually mimics the bathymetry of the ocean floor ever so slightly. Where there is a seamount or other feature below there is a tiny bulge in sea level above. This is due to a change in gravity. The seamount is a source of excess mass under the water compared to the seafloor around it. The more mass an object has, the greater its gravitational attraction.

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This slight excess gravitational attraction pulls more water over the seamount generating this bulge. You’ll never see it, but satellites can measure these miniscule fluctuations, and this is the data used to create the rough seafloor maps that are the best available for most of the ocean. But gravity can also tell us much more.

Going Deeper

If you really want to understand what’s below the sea surface those rough maps are just a start. The images we showed you in the last blog of Wentworth and Woollard Seamounts

But even those very high-resolution maps we can now produce thanks to Falkor’s sonar

There’s nothing we can do with the sonar to spot such a hidden magma chamber. But because they are filled with denser material, magma chambers have a different gravity signature from other structures that we can detect in the gravimeter data. Brian Boston and I are working now to process that data so we can figure out what it reveals. In a later blog we’ll tell you more about how we do that, and what else gravity data can tell us.