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THE ROCHESTER SHALE: A SNAPSHOT OF ANCIENT LIFE

Rock&Gem Magazine

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March 2024

425 million years ago, New York was a warm, shallow saltwater tropical sea. Exotic creatures lived, thrived and died in the lagoons. The formation of coral reefs was just beginning.

- Joseph J. "PaleoJoe"

THE ROCHESTER SHALE: A SNAPSHOT OF ANCIENT LIFE

Trilobites scurried across the ocean floor, crinoids and cystoids grew like flowers on the sea floor. Brachiopod seashells littered the sea floor and snails and cephalopods dined on the abundant food sources. Occasionally the sea scorpions would glide by looking for an opportunity to feast on hapless prey.

The Silurian Sea in North America would eventually stretch from Wisconsin across Canada to New York and beyond. Fossils of that era can be found along what is now described as the Niagara Escarpment which runs from Wisconsin along Lake Michigan, through the Upper Peninsula of Michigan to Ontario, Canada, through Niagara Falls to Rochester, New York. Remnants of the escarpment can be seen as high cliffs in various locations.

DIGGING THE ERIE CANAL

Fast forward to the Industrial Revolution. Seeking to move products from the East Coast to the Midwest and beyond, land surveys and construction began on the Erie Canal.

PLUS D'HISTOIRES DE Rock&Gem Magazine

Rock&Gem Magazine

Rock&Gem Magazine

The Black Prince's Ruby and Other Cursed Gems

Submitted for your consideration: A collection of gems whose acquisition has often been synonymous with terrible loss but whose sparkle still holds fatal attraction. Meet some of the most cursed and feared - gems in history.

time to read

7 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

The Minerals of Transylvania

Whether you're in it for science, beauty, spooky stories, or all of it, Transylvania's minerals offer a little something for every rockhound. Deep in the heart of Romania, the Carpathian Mountains are known for gothic lore and vampire legends. In this land of Dracula, Transylvania's rugged geology, shaped by volcanic activity, has made it one of Europe's most mineral-rich areas.

time to read

2 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Is Earth's Magnetic Field Linked to Atmospheric Oxygen?

The scientists making the observation were surprised. A time series analysis of geological records over the past 540 million years of Earth history seems to show a highly correlated link between oxygen levels in the Earth's atmosphere and the strength of the planet's magnetic field, and both seem to be slowly increasing in sync.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

The Best Archaeopteryx Yet

Archaeopteryx has been an icon in the world of paleontology ever since the first one was uncovered in 1861.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Ancient Proteins Survive Much Longer than Expected and offer new insights into rhino evolution

In paleontology, the old days of pick-and-shovel and drawing evolutionary relationships based on anatomy alone may not be long gone, but they’re certainly being overshadowed by advances in the lab.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

PENNSYLVANIA'S FOSSIL FOREST

Some 300 million years ago, near the town of St. Clair, Pennsylvania, the land was covered by lush green forests with a wide variety of plants and trees.

time to read

3 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

From Waste to Rock in No Time Flat!

Ever wonder how long it takes for rock to form? It could be as little as minutes when molten lava hits ice-cold water beneath the sea to instantly form igneous basalt.

time to read

1 min

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

Maribel CAVES & HOTEL...

Haunted Ruins With 'New Hope' For Caves

time to read

7 mins

October 2025

Rock&Gem Magazine

Rock&Gem Magazine

THE GEOLOGY OF GRAVESTONES

Along with black cats, witches and jack-o'-lanterns, cemeteries are iconic symbols of Halloween—and for good reason. Shrouded in mystery, superstition and folklore, they can elicit feelings of foreboding and fear.

time to read

4 mins

October 2025

Rock&Gem Magazine

Is Subduction “Infectious?”

Earth’s surface is composed of huge plates of relatively stable continental crust and oceanic crust that are constantly forming and recycling. Where they meet, subduction frequently occurs, with ocean crust plunging beneath continents. Thus oceans open and close, appear and disappear.

time to read

1 min

October 2025

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