The continental mkpọda - ya ... Akụkụ nke a Ọdịdị na ụdị nke na-continental mkpọda

Ocean mejupụtara ọtụtụ bughi ọcha. The continental mkpọda - nke a bụ otu n'ime ha. Ihe ọ bụ na ebe bụ? Nke a ị ga-amụta site na nke a n'isiokwu a.

The continental mkpọda - na ọ bụ ...

Geography ọmụmụ abụghị naanị na ala, ma na eziokwu na-emi odude n'okpuru mmiri. Karịsịa, ọmụmụ nke mmiri n'okpuru osimiri ọdịdị ala nke oké osimiri site na a pụrụ iche na nkà mmụta sayensị ịdọ aka ná ntị - Oceanography.

Ocean n'ala mejupụtara ọtụtụ bughi akụkụ. The continental mkpọda - nke a bụ a mgbanwe region n'etiti shelf odude n'elu, na a na-akpọ bed nke oké osimiri, emi odude na ala. Ná nkezi, ọ na-emi odude na ogbu sitere na site na 200 na 2000 mita.

Geologically, ndị continental mkpọda - a nhazi n'ihu nke continental ala. Nke a na ụdị mmiri n'okpuru osimiri teren iche nke ukwu ná mkpọda ugwu, nke nwere ike iru 30-40 degrees. Ọtụtụ mgbe ọ na-mgbagwoju anya site na nnukwu nkume nzọụkwụ, omimi, ridges na ọnụ ọnụ ugwu. Ọtụtụ mgbe hụrụ na continental mkpọda na mmiri n'okpuru osimiri mbuze na-eme n'okpuru edinam nke ike ndọda.

The continental mkpọda - nke a bụ a dịtụ warara òkè nke n'ala oké osimiri nke Otú ọ dị, bụ banyere 12% nke ụwa osimiri.

Atụmatụ nke Ọdịdị nke ahụ continental mkpọda

Maka continental mkpọda abụghị ihe e ji mara nke a ezigbo n'elu. Ọzọ, na ala mmewere bụ dị iche iche oké na pụtara miri agbajikwa enyemaka. Ọ bụ nnọọ nkịtị na-ahụ miri emi ndagwurugwu na ndagwurugwu. Na elu ná mkpọda mgbe slide nnukwu ìgwè mmadụ na nke oké nkume, akpụ turbid fluxes na okwukwo.

The continental mkpọda n'akụkụ dị iche iche nke ụwa abụghị otu ihe na iche na omimi, ogologo na nrida. Ka ihe atụ, ụsọ oké osimiri nke Australia omimi continental mkpọda nwere ike ise kilomita na obosara nke 150-200 km. Ma nso continental mkpọda nke South Africa dị iche akpọ steepụ Ọdịdị.

Nnukwu mmiri n'okpuru osimiri ogbo na oceanographers chọpụtara ná mpụga nke Arctic Ocean. Ebe a, rue n'okpuru mmiri na-aga Chukchi Cap, ebe ọ bụ abut ike mmiri n'okpuru osimiri ridges.

The isi ụdị nke continental mkpọda

Ọkà mmụta sayensị conventionally kewara niile nke continental mkpọda n'ime atọ mkpụrụ ndụ ihe nketa na ụdị:

• denudation;
• accumulative;
• denudation-accumulative.

Na continental mkpọda denudation Filiks ebukarịghị ụdị nkume mbibi. The accumulative Kama nke ahụ, na-achịkwa usoro nke ìgwè geological ihe onwunwe. The continental mkpọda nke ụdị na-emekarị iso nke clastic sediments ma ọ bụ ájá. Denudation-accumulative continental mkpọda na-anọchi anya a mgbanwe ụdị n'etiti n'elu embodiments mkpọda.

Ke ofụri ofụri, isi "na-enye onyinye" geological sedimentary ihe n'ihi na ihe ọ bụla nke continental mkpọda bụ shelf. Rocks asa na okwukwo mmiri n'okpuru osimiri ya, biri n'okpuru dị ka n'ígwé nke dị iche iche thicknesses.