umfanekiso womdlalo wemfundo ukufumana iifosili kwi-archaeologist encinci, kunye nezandla zabantwana zokumba

Iindaba

Umahluko phakathi kokumba igypsum yokudlala kunye negypsum yoyilo

Kukho umahluko omkhulu phakathi kwegypsum esetyenziswa kwizinto zokudlala zakudala zabantwana kunye negypsum esetyenziselwa iinjongo zokwakha.I-gypsum yebakala lokwakha luhlobo lwekhonkrithi esetyenziselwa iindonga zangaphandle kunye nokuhlobisa kwangaphakathi.Inamandla okucinezela okugqwesileyo kunye nokuqina, inokumelana nokufuma kunye nokugqwala, kwaye inika inqanaba elithile lokugquma kwe-thermal.Ngakolunye uhlangothi, i-gypsum esetyenziswa kwiithoyi ze-archaeological zabantwana yinto eyahlukileyo elula.Inamandla asezantsi kakhulu okucinezela kunye nokuqina xa kuthelekiswa ne-gypsum yebakala lokwakha, kwaye iipropathi zayo zokugquma i-thermal nazo zingaphantsi.Ukongezelela, i-gypsum kwizinto zokudlala zabantwana ze-archaeological zivame ukonakala, ngelixa i-gypsum yeklasi yokwakha ingasetyenziselwa ixesha elide.

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Igypsum yethu yokudlala yenziwe ngegypsum ehambelana nokusingqongileyo, kwaye ayibangeli naluphi na ungcoliseko kokusingqongileyo emva kokusetyenziswa.Nangona kunjalo, i-gypsum powder eshiywe emva kokumba ayinakuphinda isetyenziswe.Ngamanye amazwi, ayinakuphinda igalelwe kwi-mold kwaye iphinde ibhakwe ukwenza iithoyi ezintsha zokumba.


Ixesha lokuposa: Jul-17-2023