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    He could only imagine poking into her puckered pink ass, using only her spit and his precum as lube. Set your location and meet people at a nearest coffee shop, at a local party or any other place. You have 24-hours to like or pass on your person, and if that person also likes you, the app opens up a private text messaging line to get the conversation started.

    Why do archaeologists use relative dating

    For detailed information about how seriation works, see Seriation: A Step by Step Description.

    Clark Wissler, an anthropologist researching Native American groups in the Southwest, recognized the potential for such dating, and brought Douglass subfossil wood from puebloan ruins.

    Douglass believed that solar flares affected climate, and hence the amount of growth a tree might gain in a given year.

    His research culminated in proving that tree ring width varies with annual rainfall.

    Like tail fins on a Cadillac, artifact styles and characteristics change over time, coming into fashion, then fading in popularity. The standard graphical result of seriation is a series of "battleship curves," which are horizontal bars representing percentages plotted on a vertical axis.

    Plotting several curves can allow the archaeologist to develop a relative chronology for an entire site or group of sites.

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