23.Let’ssayyouareexcavatingasite.Youarebeingprettycareful,andareusing1/4″meshscreenstosievethedirt
afteritisremovedbyatrowelanddustpanfromthesite.Youfindafewverysmallbutwell-preservedfishbones.
Thenextday:
a.youdecidetostopusingtrowelsandstartusingdentaltoolsfortheexcavation;youareprobablynot
recoveringmanyfishbonesbecausetheyarebeinginadvertentlydestroyedbytroweling.
b.youconcludethatpeopleinthepastwerenotusingminnowsandyouceaseexcavation.
c.youfearthatthe1/4″meshofthescreenmayallowmostoftheverysmallfishbonestopassthrough;you
decidetoswitchto1/8″mesh,andmaybeevenscreenasampleofdirtthrough1/16″meshtoseeifyouare
findingfewbonesbecausetheyarenotpresent,orbecausethescreeningmethodissystematicallylosing
them.
d.yourealizethatfishwerenotbeingusedprehistoricallyanddecidethatasinglebackhoetrenchthroughthe
sitewillprobablygiveyouasufficientamountofremainsofotheranimalstopermityoutotestyour
hypothesis.
24.Whichofthefollowingwerethetextbookauthors,ThomasandKelly,interestedinmappingatGatecliff?
a.Thelocationofanyartifactsfoundinsitu
b.Thelocationofanyfeatures,suchashearths
c.Thelocationofanylargeecofacts
d.Alloftheanswersarecorrect.
25.Matrixsortingisatechnique:
a.thatinvolveshandsortingofprocessedbulksoilsamplesforminuteartifactsandecofacts.
b.inwhichlarge,obviousartifactsareremovedpriortoscreeningtopreventtheartifactsfrombeingdamaged
bythescreeningprocess.
c.thatusesfluidsuspensiontorecovertinyburnedplantremainsandbonefragments.
d.inwhichsedimentisplacedinascreenandthematrixiswashedawaywithhoses.