Njira Zasayansi mu Zakale Zakale Zakale
Kafukufuku wa zinthu zakale zakale ndi nthambi ya sayansi yomwe imaphunzira za moyo wa anthu asanalembedwe. Popeza zikalata zolembedwa sizikupezeka, akatswiri ofukula zinthu zakale ayenera kudalira umboni wofunikira monga zida zamwala, zotsalira za chakudya, mafupa, zizindikiro za malo okhala, ndi kusintha kwa chilengedwe komwe kwalembedwa m'matope. Kuti amvetsetse bwino umboni wonsewu, kafukufuku wa zinthu zakale zakale amagwiritsa ntchito njira yasayansi: njira zingapo zokhazikika, zoyezeka, zoyesedwa, komanso zobwerezabwereza. Njira imeneyi imathandiza akatswiri ofukula zinthu zakale kupanga zomangamanga zakale zomwe zingatheke pomwe akuchepetsa malingaliro.
Zakale zakale monga sayansi: kuyambira mafunso mpaka malingaliro
Njira yasayansi imayamba ndi kupanga funso lofufuza. M'malo mongofuna zinthu zakale, akatswiri ofukula zinthu zakale amafunsa mafunso enieni: kodi malowo anali liti? Kodi njira zawo zopezera zofunika pa moyo zinali zotani—kusaka, kusonkhanitsa, kapena ulimi? Kodi ukadaulo wa zida unayamba bwanji? Kodi panali kuyanjana pakati pa magulu? Mafunso amtunduwu ndiye amachititsa kuti pakhale malingaliro, malingaliro oyesera, komanso oyesedwa. Mwachitsanzo, "magulu akale m'madera a m'mphepete mwa nyanja adagwiritsa ntchito kwambiri zinthu zam'madzi" kapena "kusintha kwa nyengo kunakhudza njira zokhalira kuyambira m'mapanga mpaka m'zigwa zotseguka."
Lingaliro limeneli silili lokha, koma limayesedwa kudzera mu kusonkhanitsa deta ya m'munda, kusanthula kwa labotale, ndi kuyerekeza ndi zomwe zapezeka kuchokera ku malo ena. Mwanjira imeneyi, zinthu zakale zakale zimasintha kuchoka pa kufotokoza kupita ku kufotokoza.
Kufufuza ndi kupanga mapu: kupeza zomwe zikuchitika musanafukule
Gawo loyamba lofunika kwambiri ndi kafukufuku. Kafukufuku wa zinthu zakale cholinga chake ndi kuzindikira malo omwe angakhalepo ndikumvetsetsa kufalikira kwa zotsalira m'dera linalake. Njira zake zingaphatikizepo kufufuza pamwamba (kuona zinthu zakale zomwe zimawoneka pansi), kufufuza mwadongosolo pogwiritsa ntchito njira zofufuzira kapena ma gridi, mpaka mapu ozikidwa paukadaulo monga GPS, zithunzi za satellite, ma drones, ndi LiDAR (Kuzindikira Kuwala ndi Kusintha). Ukadaulo uwu umathandiza akatswiri ofukula zinthu zakale kuzindikira nyumba zomwe zabisika ndi zomera kapena malo obisika omwe amasonyeza zomwe anthu adachita kale.
Kafukufukuyu amathandizanso kumvetsetsa momwe malo alili: kuyandikira kwa magwero a madzi, kupezeka kwa zinthu zamwala, mwayi wopeza malo osakira kapena nthaka yachonde, komanso chiopsezo cha masoka achilengedwe. Mu kafukufuku wakale, nthawi zambiri nkhani yake ndi yofunika kwambiri monga momwe chinthucho chimakhalira. Nkhwangwa yamwala yomwe imapezeka popanda malo omveka bwino imakhala yotsika mtengo kuposa yomwe imadziwika kuti imachokera ku gawo linalake pamalo okonzedwa bwino.
Kufukula kwa stratigraphic: kuwerenga "zigawo za nthawi"
Kufukula ndi njira yayikulu yopezera deta yolamulidwa. Njira yasayansi imalimbikitsa kufukula m'magawo a nthaka (strata), komwe kumaphatikizapo kufukula m'magawo a nthaka (strata) opangidwa ndi njira zachilengedwe ndi zochita za anthu. Mfundo yaikulu ndi yakuti zigawo zakuzama nthawi zambiri zimakhala zakale kuposa zomwe zili pamwamba pake, pokhapokha ngati zasokonezedwa ndi kugwa kwa nthaka, zochitika za nyama, kapena kufukulanso kwa anthu.
Pa nthawi yofukula, akatswiri ofukula zinthu zakale amalemba komwe chilichonse chapezeka—kuya kwake, ma coordinates ake, kugwirizana kwake ndi zinthu zina (monga malo ophikira moto, mabowo a m'manda, manda), ndi makhalidwe a m'nthaka. Kujambula kumeneku kumapanga mbiri yotsimikizika. Njira yolembera imaphatikizapo zithunzi, zojambula, zolemba za m'munda, komanso mapu amitundu itatu. Mapulojekiti ambiri amakono amagwiritsanso ntchito photogrammetry kuti apange zitsanzo zolondola za 3D za zigawo ndi zinthu zina.
Chibwenzi: kudziwa zaka za malo ndi zomwe zapezeka
Kuyankha funso lakuti “liti?” ndiko maziko a kafukufuku wa zinthu zakale zakale. Njira zasayansi zimapereka njira zosiyanasiyana zopezera zaka, zomwe nthawi zambiri zimagawidwa m'magulu awiri: ubale ndi ubale weniweni.
Malo opezera chibwenzi chogwirizana amapeza motsatira nthawi popanda kutchula masiku enieni. Zitsanzo zikuphatikizapo kalembedwe ka zinthu zakale—kugawa zida ndi mawonekedwe ndi njira zopangira kuti ziwone kusintha pakapita nthawi—ndi kusanthula kwa stratigraphic.
Kuyesa zaka zonse kumapereka chiyerekezo cha zaka m'zaka. Njira yodziwika bwino kwambiri ndi kuyesa zaka za radiocarbon (C-14) pazinthu zachilengedwe monga makala, mafupa, kapena tirigu. Pazinthu zakale kapena mitundu ina ya zinthu, akatswiri ofukula zinthu zakale angagwiritse ntchito kuyesa zaka za kuwala (OSL/TL), komwe kumayesa nthawi yomwe mchere unapezeka pomaliza kutentha kapena kuwala, kapena kuyesa zaka za uranium-series za calcite m'mapanga ndi zinthu zina zakale. Kusankha njira kumadalira mtundu wa chitsanzo, momwe malo alili, ndi msinkhu womwe mukufuna.
Kusanthula zinthu zakale: ukadaulo, ntchito, ndi khalidwe
Zinthu zakale—makamaka zida zamwala—zimalemba zosankha zaukadaulo ndi njira zogwiritsira ntchito pamoyo. Kusanthula kwasayansi sikungoyang'ana mawonekedwe a chidacho komanso zipangizo zopangira, njira zopangira (monga kupukuta, kukanikiza, kupukuta), ndi zizindikiro za kagwiritsidwe ntchito (kusanthula kagwiritsidwe ntchito). Ma maikulosikopu amathandiza kuzindikira mikwingwirima yaying'ono yomwe imasonyeza ngati chidacho chinagwiritsidwa ntchito podula nyama, kulima zomera, kugwira ntchito yamatabwa, kapena kukanda zikopa.
Kuphatikiza apo, kusanthula zotsalira kumatha kuzindikira zotsalira zazing'ono monga starch, phytoliths, kapena mapuloteni olumikizidwa ndi zida. Izi zimathandiza akatswiri ofukula zinthu zakale kulumikiza zinthu zakale ndi zochitika zinazake, m'malo mongoganizira chabe.
Bioarchaeology ndi archeozoology: kumvetsetsa thupi ndi chakudya
Njira zasayansi zimaphatikizaponso kuphunzira za zotsalira za anthu ndi nyama. Bioarchaeology imafufuza mafupa a anthu kuti amvetse kuchuluka kwa anthu (zaka, kugonana), thanzi, momwe matenda amachitikira, zochita zolimbitsa thupi, ndi machitidwe oika maliro. Zizindikiro za mafupa, monga kuvulala, zizindikiro za kusowa zakudya m'thupi, kapena kusintha kwa minofu, zingathandize kukonzanso moyo watsiku ndi tsiku.
Akatswiri ofufuza za mafupa a nyama amaphunzira mafupa a nyama: ndi mitundu yanji yomwe inasakidwa kapena kusungidwa m'nyumba, ziwalo za thupi zomwe zinabweretsedwa pamalopo, momwe zinadulidwira, komanso ngati pali zizindikiro zilizonse zoyaka. Kuphatikiza kumeneku kwa deta kukuwonetsa njira zopezera zofunika pa moyo, nyengo ya malo okhala, komanso kuchuluka kwa zovuta zachuma.
Archaeobotany ndi chilengedwe: ubale wa anthu ndi chilengedwe
Zakale zakale zisanachitike sizingasiyanitsidwe ndi chilengedwe. Archaeobotany imafufuza zotsalira za zomera monga makala, mbewu, mungu, zomera za phytolith, ndi zotsalira za starch. Kuchokera pa izi, akatswiri ofukula zakale amatha kudziwa momwe zomera zakuthengo zimadyedwa, chiyambi cha kubzala, ndi kusintha kwa zomera chifukwa cha zochita za anthu. Kusanthula kwa dothi ndi geology ya malo (geoarchaeology) kumathandiza kumvetsetsa njira yopangira malo: ngati zigawo zinapangidwa ndi kusefukira kwa madzi, kuphulika kwa mapiri, zochitika m'mapanga, kapena middens ya kukhitchini.
Njira zokhazikika za isotope zikufunikanso kukhala zofunika kwambiri. Ma isotope a kaboni ndi nayitrogeni m'mafupa amatha kusonyeza mtundu wa zakudya (monga, magwero a m'nyanja poyerekeza ndi a padziko lapansi, zomera za C3 poyerekeza ndi C4). Ma isotope a strontium amatha kusonyeza kuyenda—kaya munthu anakulira m'dera lomwelo kumene anaikidwa m'manda kapena kusunthidwa kuchokera kudera lina.
Kuyesera ndi kubwerezabwereza: kuyesa kuthekera
Chimodzi mwa mphamvu za njira yasayansi ndi kuyesa zinthu zakale. Akatswiri ofukula zinthu zakale amapanga zifaniziro za zida za miyala, amayesa njira zawo zopangira, kenako amazigwiritsa ntchito pazochitika zinazake. Zotsatira zake zimayerekezeredwa ndi zizindikiro za zinthu zakale zoyambirira. Mwanjira imeneyi, malingaliro okhudza ntchito ya chidacho, tsiku lopangira, kapena luso laukadaulo amatha kuyesedwa moyenera.
Kuyeseraku kumagwiritsidwanso ntchito pomanganso nyumba, kuwotcha, kapena njira zosungira chakudya. Ngakhale kuti sikungathe kubwereza kwathunthu momwe zinthu zinalili kale, kumathandiza kuchepetsa kutanthauzira komwe kungatheke ndikuwonjezera kulondola.
Kupanga ndi kutanthauzira deta: kuyambira manambala mpaka nkhani
Deta ya zinthu zakale isanayambe nthawi zambiri imakhala yosiyanasiyana kwambiri, kuphatikizapo masiku a radiocarbon, kapangidwe ka dothi, mitundu ya zinthu zakale, kuzindikira mitundu, ndi zitsanzo za malo. Njira yasayansi imafuna kupanga kowonekera bwino: momwe deta imasankhidwira, momwe kusatsimikizika kumawerengedwera, ndi momwe ziganizo zimaperekedwera. Ziwerengero, chitsanzo cha nthawi (monga, chitsanzo cha Bayesian cha data ya radiocarbon), ndi Geographic Information Systems (GIS) zimathandiza kukonza njira yogwiritsira ntchito deta.
Komabe, kutanthauzira kumafunabe kusamala. Akatswiri ofukula zinthu zakale ayenera kuganizira za kusasamala (sizinthu zonse zomwe zasungidwa), kusokonezeka kwa malo, komanso kuthekera kopereka mafotokozedwe angapo, ofanana. Chifukwa chake, mabuku asayansi nthawi zambiri amakhala ndi kukambirana za zoperewera za deta ndi kutanthauzira kwina.
Makhalidwe abwino ndi mgwirizano: gawo la machitidwe asayansi amakono
Njira yasayansi yopezera zinthu zakale zakale imaphatikizaponso makhalidwe abwino ofufuza. Malo akale ndi zinthu zosasinthika: akangofukulidwa popanda zikalata zoyenera, chidziwitsocho chimatayika. Akatswiri ofukula zinthu zakale ayenera kuonetsetsa kuti kusunga, kulemba, ndi kusungira zomwe zapezeka zikuchitika motsatira miyezo. Kuphatikiza apo, mgwirizano ndi madera am'deralo, maboma, ndi madera achikhalidwe (ngati kuli koyenera) ukudziwika kuti ndi wofunikira kwambiri, makamaka pakuyang'anira malo ndi kafukufuku pa zakufa za anthu.
Mu nthawi yamakono, kafukufuku wa zinthu zakale akupitanso patsogolo pa deta yotseguka: kugawana njira, metadata, ndi zotsatira zowunikira kuti zitsimikizidwe ndi ofufuza ena. Izi zikugwirizana ndi mfundo zasayansi zobwerezabwereza ndi kutsimikizira.
Kutseka
Zakale zakale zisanachitike zingagwire ntchito ndi nthawi zakale komanso umboni wochepa, koma njira yasayansi imalola kuphunzira mwatsatanetsatane zakale. Kuyambira kufufuza ndi kupanga mapu, kufukula m'magawo, kupeza nthawi, kusanthula zinthu zakale ndi zotsalira za zamoyo, mpaka kupanga zitsanzo ndi kuyesa—zonsezi zimapangidwa kuti ziyese malingaliro, kuwunika kusatsimikizika, ndikupanga kutanthauzira kolimba kwambiri kutengera deta. Ndi njira iyi, zakale zakale zikupita patsogolo kuposa kusonkhanitsa zotsalira mpaka kumanga kumvetsetsa kodalirika kwa chiyambi, kusintha, ndi kusiyanasiyana kwa miyoyo ya anthu m'mbuyomu.
