Alluvium - bụ n'ihi ihe omume nke mmiri aga

Gịnị bụ alluvium? The definition nke a okwu nwere ike e nyere na ọtụtụ ụzọ. Ọ niile na-adabere onye bụ nwee mmasị n'isiokwu a. N'ihi na-amụrụ ihe, maka-amụrụ ihe, maka naghị arụ ọrụ ego maka a mfe layman definition nwere ike ụda dị iche iche.

Eleghị anya, nwoke ọ bula na ala otu na ndụ na-eme na osimiri. Ma ọ bụrụ na ọ mere ke ini utọ, n'oge iju mmiri ahụ, ya ga-chọpụtara na a nnukwu ego nke dị iche iche ihe (nkume, iberibe nkume, boulders, ájá, ájá, osisi na shrub alaka, mma, ma ọ bụrụ na ọ bụghị a dị iche iche mmadụ mere irighiri) rụrụ n'akụkụ osimiri downstream . Onwere, ihe niile a bụ na alluvium.

Ya mere, alluvium - bụ niile na-eweta na ọ a osimiri? Ọ dịghị, ọ bụghị kpọmkwem. Mgbe ahụ, ma eleghị anya, alluvium - bụ akụkụ nke ọwa nke osimiri na-eme ya nne na nna oké nkume? Ọ bụghị otú ahụ.

Nkà mmụta sayensị na definition nke okwu

Ọfọn, ugbu a anyị na-enye ya ihe niile ahụ na nkà mmụta sayensị definition. Alluvium - a sedimenti na-edebe mmiri iyi esịnede saa na ota detrital okwu na-organic okwu. The okwu na-abịa site Latin alluvio, nke pụtara "etinyere", "alluvium".

Alluvium mbara ọzara na ugwu osimiri

E nwere isi ihe abụọ na ụdị nke alluvium, nke adabere n'ụzọ bụ isi na tectonics na teren, ebe osimiri na-aga. Nke a alluvium ugwu na ala ala osimiri.

Alluvium ugwu osimiri

River na ugwu-na-emekarị ji nnukwu eruba ọnụego nke ego na-iso tumadi nke nkume na gravel. Ịnọgide mma adụ nkume adịghị enwe oge na-ekpetekwa osimiri wee dọrọ downstream.

Sedimentation ugwu osimiri ji ndị na-esonụ atụmatụ:

• Ọ mejupụtara Ntụ irighiri, nke-enwe shingle;
• iche iche ịnweta mejupụtara rifọrọ;
• ogbenye sorting nke ihe onwunwe;
• ọ dịghị anya stratification.

Alluvium nādighi nke osimiri.

Na mbara ọzara nke osimiri ala igba ọnụego na, ya, ha na-adịghị ike na-ebu ihe karịrị anya Ntụ iberibe.

N'ihi ya na-eme ka ala ala osimiri na-pụta ụwa ndị ọzọ na-egosi:

• melkooblomochnogo iso nke ihe onwunwe nke na-adịkwaghị ájá na aja loam;
• zuru ezu homogeneous ịnweta mejupụtara;
• ezi sorting nke ihe onwunwe;
• ọnụnọ nke Ntụ cross-eji ehi ura, agafe n'ime obere cross-eji ehi ura.

The zoning nke osimiri alluvium na e ji mara ya

Zoning-ahụkarị nke fọrọ nke nta ka ọ bụla eke onu ma ọ bụ ihe. Ọ bụ ezie na ọ bụ n'ihi na alluvial ala bụ obere akpọ karịa maka ndị ọzọ, na ha isi constituent akụrụngwa bụ nanị alluvium. Nke a, Otú ọ dị, adịghị achị si mmetụta nke zoning na alluvium, isi na ya ịnweta mejupụtara na acidity.

Otú ọ dị, ibu osimiri na ya floodplain, na obere akpọ zoning alluvial ego na ya.

Ná nkezi, ihe mmiri ebe ke edere edere alluvial Ona a bụ acidic, ji enweghị carbonates na-abụghị saline. Na ọganihu dị n'ebe ndịda, ke ọzọ kpọrọ nkụ ebe, ha na-aghọ na-anọpụ iche na mbụ, na mgbe ahụ, otu alkaline mmeghachi omume, ji saturation na carbonates.

Delta, floodplain, oxbow na ọwa alluvium

Alluvial ego na ala ala osimiri na-mgbagwoju na manifold. Ya mere, na uwa nke ọdịda, na ebe nke ha ego ha alluvial ego na-ekewa n'ime osimiri bed, na Delta, floodplain na oxbow.

Deltaic alluvium guzobere deltas na ji ájá-ụrọ mejupụtara.

Channel alluvium guzobere osimiri na mejupụtara tumadi nke ájá na coarser irighiri, dị ka boulders, pebbles na gravel. Ha na-guzobere site ájá Ogwe, spits na n'àgwàetiti na osimiri.

Floodplain alluvium kpụrụ n'oge iju mmiri na mejupụtara a dịgasị iche iche nke loam, ezi ájá na ụrọ ọgaranya organic.

Oxbow alluvium edebe na ala nke oxbow ọdọ mmiri ndị na mejupụtara ájá na ọtụtụ organic okwu.

Alluvial ego na-ekesa gburugburu ụwa. Long ebe ọ bụ na ha na mmepe malitere iputa niile bụ isi ụwa ochie mepee dị ka Ijipt oge ochie na na Ndagwurugwu Naịl ma ọ bụ oge ochie Mesopotamia na ndagwurugwu nke Tigris ye Euphrates.

Na ụwa nke oge a na-akọ ugbo ala na-dị na ebe nke floodplain alluvium. Ọ na-mgbe nwere ego nke minerals, na ọbụna dị oké ọnụ ahịa mineral.