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One of the most interesting and useful areas of research into stone tools is also among the most time consuming. TARL analyst Marilyn Shoberg examines stone tools under a high powered microscope, searching for traces of past use—striations and residues typically not apparent to the naked eye. By comparing these wear patterns with those on experimental tools, she is able to link them with tool actions, such as scraping and cutting.
Much of her research has focused on some very ancient tools—those from the Gault site in central Texas. It has attracted national and international attention because of the wealth of new information it has yielded, particularly on Clovis culture. Shoberg's work at TARL has involved acquiring and analyzing a set of experimental tools in order to have a comparative basis for analyzing dozens of archeological specimens from that site.
In this feature, she discusses what can be learned from microwear analysis and the processes involved in this type of inquiry. Some of the stone artifacts in an archeological assemblage are formal tools that have recognizable shapes such as projectile points, bifaces, or endscrapers.
Many more artifacts appear to have been used, however, and unless we look at them under the microscope we can only guess at what their function may have been. When a stone tool is used, the edge is gradually worn away by the loss of flakes and abrasion. The surface is modified by contact with the worked material so that it appears shiny or polished.
Microwear analysis is a systematic process of recording wear traces such as edge flaking, the surface characteristics of polish, and the orientation of striations on a stone tool in order to determine how that tool was used. Observations are made at magnifications from 50X to X. Images of potentially diagnostic wear traces are captured with a digital Moticam camera. Microwear analysts learn how to identify the various attributes of wear traces by looking at experimental tools used in many different tasks on a wide variety of materials.
It is absolutely essential for every analyst to do experiments and to acquire a reference collection of tools used in tasks relevant to prehistoric human behavior. The comparative collection of experimental tools we have at TARL is a terrific asset for analysis and teaching.
It has grown from the work of many former students here at UT, archeologists and friends of archeology. The collection includes tools used on plant materials, several kinds of wood, bone, antler, elephant ivory, hide, and butchering a variety of animals. In archeology we attempt to understand past human behavior from material culture; however only a very small fraction of that material culture survives.
The things that people made from perishable organic materials such as plants, wood, bone, and skin are for the most part missing from the archeological record. Among the most interesting tools I have looked at are a small Clovis age flake used to incise bone, tools used to pierce animal skin, perhaps in the manufacture of clothing or shelter, and small prismatic blade fragments used in fine cutting or scraping tasks on grass, reed and wood.
Sometimes you find an example of a recycled tool like a used-up projectile point re-purposed as a scraper or abrader on animal skin.
More information about the Gault site, the artifacts examined for microwear traces, and the process of developing an experimental tool set can be found in the TBH Gault site exhibit. You are welcome to contact me to learn more about the research I conduct and to discuss my availability to contribute to projects under contract. My contact information is below:.
To learn more about how microwear analysis has guided stone tool interpretation, visit the How Do We Know That? TBH Home. Finding Microwear Patterns on Stone Tools Patterns of wear on replicated stone tools used for woodworking are shown at a magnification of X.
The three tools—an adze and two flakes—were crafted by a modern knapper and used for different tasks on different types of wood. Experimental tools such as these provide a comparative baseline for discerning microwear patterns on ancient tools, determining how they might have been used, and on what materials.
Photos by Marilyn Shoberg. She typically makes observations at magnifications ranging from 50X to X and captures potentially diagnostic wear traces with a digital Moticam camera. Examples of Clovis blades and tools made on blades from the Gault site. Through microwear analysis, Shoberg identified three very different tasks that Clovis blades were used for: butchering, grass-cutting, and woodworking.
Magnified edge of Clovis blade from the Gault site with bright polish so well developed that it can be seen with the naked eye. This x view shows extremely thick polish and a heavily rounded edge thought to result from the cutting of grass or similar plants.
Photo by Marilyn Shoberg. Patterns of wear on replicated stone tools used for woodworking are shown at a magnification of X. By Marilyn Shoberg Some of the stone artifacts in an archeological assemblage are formal tools that have recognizable shapes such as projectile points, bifaces, or endscrapers.
My contact information is below: mbshoberg mail.
Jump to navigation. John Ware is a Southwestern anthropologist and archaeologist whose teaching and research concerns focus on the Native American cultures of the northern Southwest, where he has worked for over 40 years. From until his retirement in , Dr. Ware served as executive director of the Amerind Foundation in southern Arizona. In the last decade or so there have been several important treatments of the subject and migration has crept slowly back onto the stage of subjects permissible to address e.
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One of the most interesting and useful areas of research into stone tools is also among the most time consuming. TARL analyst Marilyn Shoberg examines stone tools under a high powered microscope, searching for traces of past use—striations and residues typically not apparent to the naked eye. By comparing these wear patterns with those on experimental tools, she is able to link them with tool actions, such as scraping and cutting. Much of her research has focused on some very ancient tools—those from the Gault site in central Texas. It has attracted national and international attention because of the wealth of new information it has yielded, particularly on Clovis culture. Shoberg's work at TARL has involved acquiring and analyzing a set of experimental tools in order to have a comparative basis for analyzing dozens of archeological specimens from that site. In this feature, she discusses what can be learned from microwear analysis and the processes involved in this type of inquiry.SEE VIDEO BY TOPIC: PE Squeeze-Off Tools with Demo of PES8H - Reed Manufacturing
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In stock. Uh oh…it's not possible to order less than 1 unit of this product. Secure payment by debit or credit card. Product available from 1 other seller s. The Hudson Reed brand specialises luxury bathroom products at affordable prices, combining comfort and reliability with practicality and quality craftsmanship. The product development team behind Hudson Reed work tirelessly to provide you with the best products at prices we believe will be hard to beat anywhere. Innovation is an everyday experience, and with Hudson Reed you can share that experience. The Hudson Reed range includes everything you need to create your dream bathroom; from taps to towel rails, sanitary-ware to showers we have it all.
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