Stromatolites: You Can't Spell Mold Without Old One of the big problems with Kelvin's estimates for the age of the Earth was ...

Right: OH-defects in young (0.3 Gyr) Variscan granites are one order of magnitude higher than in old (0.9-1.8 Gyr) Proterozoic granites from Scandinavia . The OH-content is reflected in recent ...

Rose says in the middle of the Keweenaw basalt is a middle layer of pegmatoids, a type of igneous rock with notably coarse grains that produce giant crystals. Keeping a tradition alive ...

"The most well-known example of an unconformity is 'The Great Unconformity,' which is a major geologic boundary found throughout North America that separates ancient igneous and metamorphic rocks ...

The zircon crystals were selected under a stereomicroscope ... 9C to 9E), indicating that its primary source was the Cuiú-Cuiú Arc igneous rocks. It was not possible to properly date amphibolite MV-59 ...

Just a short drive from downtown Llano lies one of Texas’ most remarkable natural wonders – Enchanted Rock. This massive pink ...

The Baby Head Cemetery, despite its unsettling name (which comes from a nearby geographic feature), offers a peaceful spot for reflection and a window into the area’s pioneer history. The weathered ...

Curiosity rover cracked open a Martian rock, revealing a sight never before seen on Mars - a dazzling display of yellow ...

A 30,000-year-old vulture fossil was found in volcanic rock. Scientists discovered microscopic feather details preserved in ...