Conglomerate (geology)

conglomerate is a coarse-grained clastic sedimentary rock that is composed of a substantial fraction of rounded to sub-angular gravel sized clasts for example granules pebbles cobbles and boulders larger than 2 millimeters in diameter conglomerates formed by the consolidation and lithification of gravel conglomerates typically contain finer grained sediment for example either sand silt clay or combination of them called matrix by geologists filling their interstices and are often cemented by calcium carbonate iron oxide silica or hardened clay the size and composition of the gravel size fraction of a conglomerate may or may not vary in composition sorting and […]

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World’s largest shake table reveals how earthquakes damage wood-framed buildings

Now we have been working for many decades to strengthen the performance of buildings underneath seismic loading. This can be a collaborative task with the japanese study team that has been conducting significant scale shake desk exams on the E-security facility. They’ve been conducting full scale assessments on two three-story wood buildings, traditional of urban environments in Tokyo. E-safety is the most important 3D shake desk on this planet to habits full scale exams on structures.Which you could have a entire building with each element. That you could subject the building to an actual, recorded earthquake. The superb intention for […]

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Hawaii’s Kilauea Volcano – Behind the News

JACK EVANS: For the past couple of weeks, this river of red-hot rock has been causing chaos in the streets of Hawaii. MAN: I think it's faster than a turtle can move. The lava doesn't move quickly, but nothing can stop it. And as you can see from this video, it destroys everything in its path. The lava is coming from Kilauea, a volcano on Hawaii's Big Island, which is home to these guys. Aloha, BTN. I'm Fiona. Aloha, BTN. My name is Sebastian. I go to the Volcano School of Arts & Sciences. It's about, like, maybe a four-minute […]

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Space Volcanoes – Shelf Life 360

>>DENTON EBEL, CURATOR: For centuries, people wondered if there were volcanoes on the Moon. When people looked at the Moon with telescopes, they saw, “Aha! There’s these big round things.” At the time, it was not understood that impacts make craters that to the untrained eye might look like volcanoes. >> MISSION CONTROL: Apollo 11, this is Houston, over. >>EBEL: The rocks that the Apollo astronauts brought back unlocked the secrets of the Moon. Turns out, they’re a lot like the basaltic rocks that we’d find in Iceland, or in Hawaii. So, we know that the Moon was volcanically active […]

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The Whole Saga of the Supercontinents

By now, you’ve surely picked up on the idea that the study of natural history is basically the study of how the world has changed. The study of how we all got here. And of course, the world continues to change, all the time. I mean, literally. I’m not just talking about how life adapts, or how the climate is changing. I mean the planet itself, as an object, is in a constant state of flux — because the ground beneath your feet is always moving. So, the place where you are right now was not always … there. For […]

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Resilient Cities | Earthquakes: Exploring Early Warning Systems | Ep#4 | AXA Research Fund

Fifteen of the largest metropolis on this planet what we call mega cities are on earthquake energetic areas for illustration Tokyo l. A. Mexico city Istanbul between 1980 and 2014 there were more than 850,000 casualties triggered by using earthquakes and related results costing the worldwide economic system more than 750 billion US bulbs even as present day earthquake engineering has furnished us safer and not more susceptible constructions one most important hindrance is dealing with the vulnerability of the prevailing developed environments we are testing however all the sort of buildings that we nonetheless build in Italy and then […]

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Can We Get DNA From Fossils?

More than 120 million years ago, in a hot, conifer-filled forest in what’s now India, a small insect made a terrible mistake. While searching for a tasty meal of pine pollen it wandered one step too far, only to find itself trapped in sticky, yellow resin. Tired from its flight, this small weevil was quickly entombed in the fragrant yellow material, which eventually became the substance we know today as Amber. Then, in 1993, scientists cracked open this very same piece of amber. They took the body of the weevil, and they sampled its DNA. Now, this is not a […]

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Powerful 7.1 earthquake hits California

Breaking news out of Kern County where another strong earthquake has struck good night and thank you for joining us on carlucci kado and i am Barbara Lee Edwards the 7.1 magnitude quake hit at 819 tonight about 10 miles from Ridgecrest where a 6.Four quake struck the previous day the subject has been rattled by aftershocks all day however seismologist say that quake the day before today was actually a foreshock – tonight news 8’s Richard Allen is right here with the very trendy Richard good that’s correct that 7.1 quake that struck this evening as a part of […]

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A Brief Introduction to Minerals

Hi, everyone in this video. We’re going to be talking about Minerals, so let’s get started What are minerals anyway well in the simplest sense of the term minerals are the building blocks of rocks? Here’s a rock. This is a piece of the igneous rock called granite if you look carefully at this chunk of granite You’ll see all sorts of speckles of Gray and white and black and if you in You’ll see that these are crystals mineral crystals this particular piece granite has the mineral quartz Biotite Mica and Plagioclase feldspar We’ll study these more detail later […]

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10 of History’s Most Devastating Earthquakes

Earthquakes are not ever a infrequent phenomenon. Its estimated that the Earth is rocked by round 1/2-a-million quakes every yr. Most are clustered around the fault lines that divide the Earths tectonic plates, but others type deeper in the mantle and might strike anywhere on the earth. Most of these earthquakes intent no harm and cant even be detected without expert gear. Big earthquakes are significantly rarer, which is fortunate as they are able to reason giant destruction over huge distances, create killer tsunamis, and even trigger volcanic eruptions. In this record we appear at 10 of essentially the most […]

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