Oct 2, 2017 · Large boulders shaped like nearly perfect spheres can be found in a handful of places around the world. Perched amid craggy, sandy landscapes, these curious orbs have been confounding onlookers...

Apr 14, 2018 · These boulders are grey-colored septarian concretions, which have been exhumed from the mudstone enclosing them and concentrated on the beach by coastal erosion. Local Māori legends explained the boulders as the remains of eel baskets, calabashes, and kumara washed ashore from the wreck of Arai-te-uru, a large sailing canoe.

Nov 30, 2024 · When seismologists find precarious boulders that have stood for thousands of years, however, they serve as witnesses of such rare events. Analysing them is improving the accuracy of earthquake...

Oct 30, 2014 · The boulders are among the world's largest concretions. The largest of the boulders are about 2 meters across and weigh 7 tons. Legends from the native people the Maori, of the area suggested that the boulders were the remains of eel baskets and food that was from the wreck of a large canoe when the Maori first arrived.

Jan 1, 2018 · Boulders are the largest grain size within the category of gravel. The term likely derives from the Swedish term “bullersten” or Middle English term “bulderston.” Boulders range in size from a minimum of 200 or 256 mm to isolated pieces weighing multiple tons …

Jan 13, 2025 · Here, however, the new high-resolution model shows massive plate-like blobs all over the world, far from any of the subduction zones known in recent geological history: beneath the western Pacific Ocean, for instance.

Feb 7, 2025 · Trovants come in all shapes and sizes, ranging from a few inches to several feet across. Geologists think trovants first originated in earthquakes more than 5 million years ago, according to BBC ...

Feb 7, 2025 · Occasionally the pressure is so great, a boulder will explode violently. You can hear it for miles … like dynamite detonating. All those white powdery patches dotted over the mountain show where there’s been an explosion.” Some claim that even on a calm day you can hear the wind whispering unnervingly through the boulders.

Feb 14, 2025 · Boulders, broken rocks, and debris can be carried in and on the glacier ice and deposited far from their original locations. Sometimes the debris is even pushed ahead of a glacier and then left behind in mounds, or, rocks found at the end of a glacier may have come from the beginning.

Here, we reviewed geological evidence of past extreme wave events recorded by coastal boulders on the Aruba, Curaçao, and Bonaire (ABC) islands of the Lesser Antilles (Caribbean).