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In this power point, I present the basic data from this past year's petrographic thin section analysis fife)
Claiborne These PPOs were loaned to us from the Walden and Satchfield collections and the mulbe from the Applestreet site. Both sites are on the Mississippi Gulf Coast. The data are presented m t* 2-listing the sand, silt, for reference the ternary graph (slide 3) and bulk composition table (slide 5) al / 1 PPOs and three mulberried PPOs from Poverty Point from the previous year's study.
good example of a mulberried PPO. 22-45 and 46 are less clear examples). 22-42 is a good example PPO and 22-43 has multiple grooves.
The mulberried PPOs were selected to answer one primary question: what was the soil composition known to come from Claiborne? This question was important because in the previous year we had mulbemes found at Poverty Point (marked with a in sMe 3) that we believed were likely to have Poverty Point from the Claiborne siteAhe Gulf Coast. We concluded this because these mulbemes1 Point had a coarse sandy composition that was similar to PPOs that we knew were from Claiborne (n slide 3) Furthermore, the composition of the mulberries found at Poverty Pomt was unlike the silty typical PPOs found at Poverty Point (slide 4). To be certain, the year we selected actual mulberries and compared their composition to the mulberries found at Poverty Pomt.
The answer: as you can see graphically (compare slides 3 and 4) one of the Claiborne mulberries 22-m composition to the mulberries found at Poverty Point. This is true for 22-43 as well. However, 2 much more silt than a typical mulberry, although not as much stlt as at Poverty Pomt. Perhaps this h with the fact they were not typical mulbemes in surface treatment (they were dimpled rather than i therefore are not real mulberries. We will be trying to make sense of this result m the coming year, mulberry found at the Applestreet site (about 50 miles pa<,» nf ri^itwnp on the Gulf Coast) was ide to the mulbemes found at Poverty Point. Therefore^m conclusion	relatively	confident	that	t
at Poverty Point were from the Gulf Coast, even if iiii i mm ii mf fl fmi they were from Claiborne I
s'*	One other interesting result: note that 22-42 from	Claiborne has a very silty composition (slide 3) an
j'	to those typically found at Poverty Pomt (slide 4).	Therefore we have concluded that 22-42 originati
/	Pomt. We cannot say whether these artifacts that have moved from their place of origm were broui
/	traded but we ire considering this question.
SLIDE 1 OF 5	NOTES
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