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Schist Fibre Cream 50mL

Schist Fibre Cream 100mL

Banded Iron Formations (BIF) is one of the unique and important rock types in the Archaean greenstone belts and Proterozoic metasedimentary series. They occupy a unique position in the sedimentation history of this time range, as they have no modern analogues. This virtual confinement of BIF in space and in time has made them extremely useful for the understanding of the Precambrian exogenic processes and the atmospheric – environmental changes that occurred during the early history of the earth. The BIF are described with different names in different parts of the world such as, Taconite – U.S.A.; Jaspilite – Australia; Itabirite – Brazil. BIF are of economic interest as they host the world’s largest iron ore deposits. There are several major aspects related to the origin and evolution of BIF for which no satisfactory and generally agreed explanation are available. Various genetic models have been proposed which, however, differ considerably from each other. The divergent conclusions of these workers bring to the fore, the problem of deciphering the origin of BIF in Nigeria and how they relate to other major BIF occurrences of the world. The workers differ in their conclusions rega

Teamson Home 4-Tier Stone-Look Waterfall Fountain with LED Lights adds a touch of tranquility and beauty to your outdoor living spaces. Made of durable polyresin and stone powder to withstand the weather and rust, its faux Schist stone look is a rustic addition to any porch, patio, deck, or landscaping. A trio of built-in LED lights have an orange tint creating a warm glow. Includes a 600 L/H pump that continuously keeps the water circulating and a 72" power cord. Color: Gray.

The Grand Canyon is famous for its rock layers, multihued bands of limestones, shales, sandstones, granites, and schists that have made the canyon one of the Seven Natural Wonders of the World. But in many of those layers, the Grand Canyon contains a veritable sea of fossilized life, from ancient stromatolites in the Grand Canyon Supergroup layers to trilobites in the rimrock Kaibab Formation to ancient reptile trackways preserved in the Coconino Sandstone. An Introduction to Grand Canyon Fossils introduces readers to the vast evidence of ancient life in the canyon and to paleontology, the study of fossilized life. Written in an easy-to-read style and heavily illustrated with diagrams and photographs, the book offers readers access to worlds of ocean shallows, windswept sand dunes, and swampy forests that once covered the Grand Canyon region and have left evidence of their presence in fossils. An Introduction to Grand Canyon Fossils is the only book of its kind focusing on the fossils of the national park, and it will be a delight to readers young and old fascinated by evidence of life hardened in stone.

Historic Architecture in Northwest Philadelphia is a colorful and comprehensive look at the rich architectural history of the Wissahickon Valley, and the people who made it possible with a locally sourced building stone, the Wissahickon schist. The simple stone structures of Germantown's origins as a village of German immigrants laid the groundwork for the more elaborate buildings for Philadelphia's rising mercantile class that followed. From the colonial period to the 1930s, this architectural tour explores 450 structures, many still standing and well preserved, in the area from Wayne Junction in Germantown to Northwest Avenue in Chestnut Hill. A wide variety of architectural styles and influences are captured in nearly 750 modern day and archival images, including the Georgian, Colonial, and Federal styles of the eighteenth and early nineteenth centuries; the Revival of those styles and others; Italianate; Second Empire; and Romantic Eclecticism. This extensive architectural review is ideal for architects, historians, and residents of Northwest Philadelphia.

Sparkling beaches, tidal estuaries, and granite headlands ornament the Massachusetts coast, while giant folds of gneiss and schist crisscross the interior, squeezed up between colliding continents like toothpaste from a tube. James Skehan explains the geologic history behind the rocks and landforms visible from the state's highways, including such well-known historic features as Bloody Bluff, Beacon Hill, Plymouth Rock, and Walden Pond. Interspersed through the guidebook are tales of pioneering geologists such as Harvard's Louis Agassiz, the first to propose that continental glaciers--not the remnants of Noah's Flood as early settlers had imagined--polished the state's bedrock and deposited its enormous boulders and sand plains. Numerous maps and photographs reveal ancient volcanoes, marble potholes, colorful minerals, dinosaur footprints, and America's first commercial railroad--built with blocks of Quincy granite. Geologic roadguides include tours of Boston Harbor Islands National Recreation Area, Cape Cod National Seashore, Nantucket, Martha's Vineyard, and Mount Greylock State Reservation.

The San Francisco Bay Area abounds with superb rock climbing, including hidden gems far from the crowds. From the Vaqueros honeycombed sandstone of Castle Rock State Park to the Franciscan blue schist of Dry Creek Sea Crag, hard serpentine at Mount Tamalpais to the sparkling granite settled at the edge of the Consumnes River, Rock Climbing the San Francisco Bay Area covers the best climbing routes in the area. With detailed descriptions of routes ranging from popular to obscure, this fully updated guidebook describes hundreds of new routes and includes full color maps, photos, and topos, making it an indispensable resource for local and visiting climbers alike.

To many of us, the Earth's crust is a relic of ancient, unknowable history. But to a geologist, stones are richly illustrated narratives, telling gothic tales of cataclysm and reincarnation. For more than four billion years, in beach sand, granite, and garnet schists, the planet has kept a rich and idiosyncratic journal of its past.Fulbright Scholar Marcia Bjornerud takes the reader along on an eye-opening tour of Deep Time, explaining in elegant prose what we see and feel beneath our feet. Both scientist and storyteller, Bjornerud uses anecdotes and metaphors to remind us that our home is a living thing with lessons to teach.She shows how our planet has long maintained a delicate balance, and how the global give-and-take has sustained life on Earth through numerous upheavals. But with the rapidly escalating effects of human beings on their home planet, that cosmic balance is being threatened—and the consequences may be catastrophic.Containing a glossary and detailed timescale, as well as vivid descriptions and historic accounts, Reading the Rocks is literally a history of the world, for all friends of the Earth.

Historic Architecture in Northwest Philadelphia is a colorful and comprehensive look at the rich architectural history of the Wissahickon Valley, and the people who made it possible with a locally sourced building stone, the Wissahickon schist. The simple stone structures of Germantown's origins as a village of German immigrants laid the groundwork for the more elaborate buildings for Philadelphia's rising mercantile class that followed. From the colonial period to the 1930s, this architectural tour explores 450 structures, many still standing and well preserved, in the area from Wayne Junction in Germantown to Northwest Avenue in Chestnut Hill. A wide variety of architectural styles and influences are captured in nearly 750 modern day and archival images, including the Georgian, Colonial, and Federal styles of the eighteenth and early nineteenth centuries; the Revival of those styles and others; Italianate; Second Empire; and Romantic Eclecticism. This extensive architectural review is ideal for architects, historians, and residents of Northwest Philadelphia.