
bayfield group

bayfield samuuham anedi wisconsinlo unnatamaina sarassu teeram vembadi kanipinche quartz isukaraayi. dheeniki wisconsinloni bayfield graamam paeru pettaru, conny okappudu dheenini paschima sarassu superior isukaraayi anie pilicheevaaru.
1900laku mundu, bayfield samuuha isukaraayi kooda sarassu superior isukaraayi, godhuma raayi ledhaa erra raayi anie vividha paerlatoe piluvabadindi mariyu kwari sthaanam dwara mundu jodinchabadindi. jacobsville isukaraayi (okappudu lake superior isukaraayi anie piluvabade) thoo daani sambandham anischitamgaa unnanduna eee paerunu bayfield samuuhamgaa marcharu.
nirmaanam.
dakshina wisconsinloni samaanamaina, sunnitamaina isuka raallaku bhinnamgaa, bayfield samuuham kramarahitamgaa padakalu kaligi undhi. bhougolika nirmaanam puurtigaa silaajaalu laenidi. bayfield samuuham chaalaa mandamgaa unde oranto samuuham meeda untundi.
4300 adugula mandamtho unna eee nirmaanam moodu bhagaluga vibhajinchabadindih "chekkamegaan isukaraayi", "devils iland isukaraayi" mariyu "oriyantaa isukaraayi". chekkamegaan isukaraayi" anedi 1000 adugula mandamtho kuudina erupu mariyu telupu isukaraayi. devils iland isukaraayi" anedi 300 adugula mandapati, gulabi nundi telupu rangu swachchamaina quartz isukaraayi, idhi gananeeyamaina alalatho untundi. oriyantaa isukaraayi" 3000 adugula mandamgaa mariyu "chekkamegaan isukaraayi" nuu pooli untundi, conny adhika feldspar saandratatoe untundi.
bayfield group keveenavan suupar grouplo sabhyuralu.
aastulu.
bayfield samuuham pradhanamgaa erupu isukaraayi, ayithe idhi gulabi, pasupu, laetha godhuma, buudida mariyu telupu vanti telikapati rangula dwara maarutuu untundi. oka chinna bhaagam muduru "godhuma raayi", idhi manchi nirmaana samagri. rangulu bandlalo sambhavistaayi, ayithe macchalu mariyu itara kramarahita gurtulu saadhaaranam.
raathi yokka chaalaa bhagalu vaataavarana maarpula yokka tudi utpattulu kabatti, idhi vaataavarana charyaku chaalaa nirodhakatanu kaligi untundi.
kuurpu.
dhanyalu mutaka pebli grits nundi shale varaku maarutuu untaayi. dhanyalu entha chakkaga unte, vaati rangu muduru rangulo untundi. dhanyalu pradhanamgaa quartz dwara simentu cheyabadataayi, dhaanyaalaku iron oxide puuta untundi.
samruddhi kramamlo, bayfield samuuham quartz, feldspar (orthoclays mariyu plogioclase rendoo), maika, iron oxide (magnetite mariyu limonite rendoo), chert mariyu pheromagnatian khanijaalato koodi untundi. quartz saadhaaranamgaa raayi yokka 75 saatam kaligi untundi.
sagatuna 52 namuunaala aadhaaramgaa, "oriyanta isukaraayi" krindi vaatitho koodi untundih 33.3% nandulatory quartz, 29.7% undulatory quartz, 17.3% potassium feldspar mariyu 9.4% silisic agniparvata samuuhaalu. chinna bhagalalo 3.9% polychrystalline quartz, 2.3% opaaklu, 1.6% maphik agniparvata samuuhaalu, 0.9% roopaantaram, 0.7% avakshepana mariyu 0.40% plogioclase unnaayi. oriyantaa isukaraayi" yokka bhaarii khanija suut 78 saatam ilmenite, 13 saatam leucoxin, 3-4% apatite, 3 saatam zircon, 2 saatam garnet mariyu 1 saatam tourmalin.
aardhika upayogam.
bayfield samuuha isukaraayi upayoginchina ekaika utpatti, mukhyamgaa "godhuma raayi", raayi nirmaanam.
1860la madhyalo, thoorpu united stateslo braun stone prachuryam pondindi. thoorpu brounstones maadirigaane bayfield samuuham yokka aavishkarana takshana dopideeki daariteesindi, mariyu 1868loe basswood dveepam brounstone companyche nirvahinchabadutunna basswood dveepamlo modati kwari praarambhinchabadindi. 1893 kii konni samvatsaraala mundu, vyaparam abhivruddhi chendutondi. ayithe, oohagaanaala bhaarii prabhavam 1893 naati bhayandolanaku samaantaramgaa ksheenataku daariteesindi.
kwaareelu tama nashtalanu tirigi pondagalige samayaniki, laetha sunnapurayi raallu aadarana pondaayi, paakshikamgaa 1893 chikago prapancha utsavam yokka "white city" kaaranamgaa. 1897 natiki, chaalaa takkuva raayi velikiteesaaru. 1912 natiki, kevalam rendu kwaareelu matrame adhika naanhyata gala bayfield samuuha isukaraayini utpatti chestu undipoyaayi.

