Middle island sinkhole

Observations of the Middle Island Sinkhole in Lake Huron

PDF | In the northern Great Lakes region, limestone sediments deposited some 400 million ybp during the Devonian era have experienced erosion, creating.

The submerged Middle Island Sinkhole in Lake Huron is where cold groundwater rich in sulfur and poor in oxygen seeps out of the lake bottom.

In the Middle Island Sinkhole (MIS), seeping groundwater establishes a low-oxygen, sulfidic environment in which a microbial mat dominated ...

Much like early Earth, microorganisms dominate the Middle Island Sinkhole in Lake Huron. Scientists now recognize three domains, or superkingdoms, on the tree ...

The sinkhole is about 75 feet deep and is available for divers to explore. The sinkhole has been studied by the NOAA Great Lakes Environmental Research ...

Lost world of extremophiles hides beneath Great Lakes

(Image: Thunder Bay Sinkholes 2008). New Scientist Default Image. The shallow Middle Island sinkhole can be seen from the surface; a 9-metre ...

... Middle Island Sinkhole in Lake Huron, Mich. Small hills and “fingers” like this one in the mats are caused by gases like methane and ...

... Middle Island Sinkhole in Michgan. Share. Print. A new study suggests Earth's supply of oxygen developed thanks to the planet's gradually ...

Though it looks something from outer space this unearthly pink blip is rising from a microbial mat inside the Middle Island Sinkhole (45.192515, ...

... Sinkhole Surprise." It seems the brightly colored bacteria that thrive in Lake Huron's Middle Island Sinkhole are good analogs for the single-celled ...

Observations of the Middle Island Sinkhole in Lake Huron ...

Observations of the Middle Island Sinkhole in Lake Huron – A Unique Hydrogeologic and Glacial Creation of 400 Million Years.

Observations during expeditions in 2002 and 2003 revealed groundwater actively seeping into three of the sinkholes, including the Middle Island, Misery Bay and ...

What's in Lake Huron Sinkhole? The severe habitat at the bottom of the Middle Island Sinkhole, Phys.org said, likely reflects the harsh ...

In one, dive teams placed pebbles and pieces of broken shells in altered locations within the Middle Island Sinkhole. Within hours, the ...

Colorful underwater microbial mats growing in salty, sulfur-rich, oxygen-poor groundwater clothe the limestone rocks in Middle Island sinkhole.

New theory proposes Earth's longer days kick-started ...

A picture shows purple microbial mats in the Middle Island Sinkhole in Lake Huron, Mich. (Phil Hartmeyer/NOAA Thunder Bay National Marine ...

Middle Island, Lake Huron, Great Lakes N 45.19843°N, W083.32721°W ... Diver image of microbial mats in Middle Island Sinkhole, Lake Huron.

A diver checks out the Middle Island Sinkhole about two miles off Alpena in Lake Huron. -Photo by LUKE CLYBURN Scientists and divers have ...

It really looks like you're on another planet – eerie, with weird formations and protrusions. Algae/seaweed-covered rocks take on a look like ...

A diver explores the Middle Island Sinkhole, a part of Lake Huron that holds microbial mats thought to be similar to the ones that lives in ...

Scientific Diving: Implementing Closed Circuit Rebreathers ...

A Case Study from the Middle Island Sinkhole in Thunder Bay National Marine Sanctuary In the mid-1990s, closed-circuit rebreathers (CCR) ...

Observations of the middle island sinkhole in Lake Huron: a unique hydrogeologic and glacial creation of 400 million years. .Marine ...

... Middle Island Sinkhole in Lake Huron, Mich. Small hills and fingers like this one in the mats are caused by gases like methane and hydrogen ...

Weird Stuff Found in the Middle Island Sinkhole · MIDDLE ISLAND · YOU CAN BARELY SEE THE SINKHOLE · AT THE BOTTOM · STRANGE OBJECTS RESEMBLING SHARK ...

isobath and the aphotic Isolated Sinkhole at the 110m isobath (directly East and offshore of Middle Island Sinkhole). Figure from. Biddanda et al. 2024 ...