ʻO nā papa pōhaku maoli Kina he ʻeleʻele nui ka ʻeleʻele ʻeleʻele

Hoʻokumu ʻia nā hono i loko o ka papa pōhaku e ka ulu ʻana o nā ʻāpana mica microscopic, ma mua o ka māhele ʻana ma ke ʻano o nā strata sedimentary mua.

Hana ʻia ka slate ke kanu ʻia ka pōhaku mudstone, shale, a i ʻole ka pōhaku igneous felsic a kau ʻia i nā mahana a me ke kaomi haʻahaʻa.

He lahilahi loa ka ʻili o ka papa pōhaku a ʻaʻole hiki ke ʻike ʻia e ka maka kanaka. He ʻili matte ko ka papa pōhaku i hoʻowali ʻia akā he laumania ke pā a ua hoʻohana mua ʻia e hana i nā papa ʻeleʻele. ʻO nā liʻiliʻi liʻiliʻi o ka silika mica e hāʻawi i ka papa pōhaku i kahi ʻano aniani silika silika.

ʻIke ʻia ka papa pōhaku i nā kala like ʻole ma muli o nā ʻokoʻa o nā ʻano mineral a me nā kūlana oxidation i loko o ke kaiapuni sedimentary mua. No ka laʻana, ua hoʻomohala ʻia ka papa pōhaku ʻeleʻele i loko o kahi kaiapuni nele i ka oxygen, akā ua hana ʻia ka papa pōhaku ʻulaʻula i kahi kaiapuni waiwai i ka oxygen.

Loaʻa ka papa pōhaku ma lalo o nā mahana a me nā kaomi haʻahaʻa, no laila hiki ke mālama ʻia nā mōʻalihaku mea kanu a me kekahi mau hiʻohiʻona hana hou.

Ua ʻeli ʻia ka papa pōhaku i loko o nā poloka nui a hoʻohana ʻia no nā panela hoʻokele uila, nā papa hana, nā papa ʻeleʻele, a me nā papahele ma muli o kona ʻano like me ka papa pōhaku, kūpaʻa, a hiki ke wāwahi. Hoʻohana ʻia nā papa pōhaku liʻiliʻi e kūkulu i nā hale.

Inā paha he mauna kiʻekiʻe a he awāwa hohonu paha, he kūlanakauhale nui a he kuaʻāina mālie paha, ʻo ke kūlana kupaianaha o ka papa pōhaku a me kona ʻano paʻa e hāʻawi mau i ke kākoʻo no ke ola a me ka hana a kānaka. ʻO ka papa pōhaku kēia, he ola maʻamau akā paʻa, he pōhaku e mālama ana i nā piliona makahiki o nā moʻolelo a me nā hoʻomanaʻo.