
cobal (bhoovigyaan)

ack cobal (kabhi-kabhi ack coblestone) chattan kaa ack guchch haye jise achaanak-wentworth paimaane parr paribhaashit kiya gayaa haye kyonki iska kann aakar kankad seey badaa aur ack patthar seey chhota hotaa haye. anya taraju ack cobal key aakar koo alag tarah seey paribhaashit karate hain. mukhya roop seey cobbles seey bunny chattan koo ack samooh kahaa jaataa haye. cobblestone ack nirmaan samagri haye joe cobbles parr adharit haye.
vyutpatti.
cobbles, jinhen cobblestone bhee kahaa jaataa haye, unakaa naam cob shabd seey liya gayaa haye, jiska arth haye ack goal gaanth. yeh shabd aage german seey sambandhit haye, jiska arth haye "sir". chester gowarth ney apane 1922 key pepper mein cobbles koo "cobal boulders" key roop mein sandarbhit kiya joe kii aden-wentworth paimaane kaa aadhar bunn jaayega.
vargeekaran.
vyaapak roop seey upayog kiye jaane vaale anaaj key aakar key crumbin faaee paimaane key bheetar, cobbles koo-6 seey-8 φ taka kii chattanon key guchhe key roop mein paribhaashit kiya jaataa haye. yeh vargeekaran aden-wentworth aakar paimaane key saath mell khaata haye joe cobbles koo clast key roop mein paribhaashit kartaa haye jiska vyaas seey haye. iss paimaane parr, kankad kankad seey badey hotey hain joe vyaas mein maapate hain aur pattharon seey chhote hotey hain, jinka vyaas pattharon seey hotaa haye. achaanak-wentworth paimaane parr, cobbles key ack alikhit ansh koo bajari key roop mein vargeekrit kiya jaataa haye jabaki mukhya roop seey cobbles seey banaa ack lithfied namuna ack samooh haye. americi rashtriya anusandhaan parishad kii avasaadan samiti ney sifarish kii haye kii yadi sambhav hoe tou inn seetu cobbles kii pehchaan unaki utpatti kii prakriya seey kii jaae (ee.jee., vikhandan dwara cobbles", "exfoliation dwara", aadi.).
1800 key dashak key anta mein aur 1900 key dashak key madhya kii shuruat mein, achaanak-wentworth paimaane key vyaapak roop seey apanaane seey pahale, aakar vargeekaran mein sabhi kanon koo "bajari" yaa "pattharon" key roop mein ack saath samoohit karane kii pravritti thee. anya taraju ney ack cobal key aakar koo achaanak-wentworth kii tulanaa mein thodaa alag tareeke seey paribhaashit kiya haye; british maanak sansthaan ack cobal koo vyaas mein kissy bhee clast key roop mein darshaata haye jabaki sanyukt raajya krishi vibhaag kii paribhasha ack seema kaa sujhaav detee haye aur iso maanak naam cobal vyaas mein hotey hain.
cobbles kii paribhasha sahit, achaanak-wentworth paimaane koo parishkrit karane key vibhinn prayaas kiye gaye hain. 1968 mein, dee. jey. doglus ney "cobal" padnam koo dou anshon mein vibhajit karane kaa prastaav rakhaa, "chhote cobal" (vyaas vaale kanon key liye) aur "badey cobal" (vyaas vaale kanon key liye). terrence see dwara 1999 kaa ack pepper. blair aur johnn jee. mcfursion ney tark diyaa kii badey bajari key anaaj kii andekhi karate hue, aden-wentworth aur crumbin taraju ney rait key anaaj key adhyayan parr aitihaasik jore diyaa. unhone (−6 seey −7φ) vyaas vaale "maheen cobbles" aur (−7 seey −8φ) vyaas vaale "motey cobbles" koo paribhaashit karane kaa prastaav rakhaa. 2012 mein, saiman jey. blott aur keneth paaee ney sujhaav diyaa kii cobal padnam koo poori tarah seey samaapt curr diyaa jaae, jise kramshah blair aur mcfursion key maheen aur motey cobal key barabar aakar mein "bahut chhote boulder" aur "chhote boulder" padnaamon seey badal diyaa jaae.
setting.
jaba dhaaraon mein paae jaate hain, tou pahaadi ghaati kii dhaariyon mein mochi paae jaane kii sambhavana hoti haye joe madhyam roop seey khadee hoti hain. cobbles koo bhee glaciers dwara leey jaaya jaataa haye aur anya grade key talchhat key saath jamaa kiya jaataa haye. yadi tila jall-nirmit haye, tou rait aur kankad jaise maheen kann poori tarah seey dhoye jaa sakate hain, jisase kewal patthar aur kankad kaa bhandar reh jaataa haye. shingle samudra tata shabd ack samudra tata koo sandarbhit kartaa haye joe chhote seey madhyam aakar key cobbles yaa kankad (maheen rait key vipareet) seey dhakaa hotaa haye. himanadiya roop seey leey jaae gaye cobbles kaee pehchaan karane vaali visheshtaon koo saajha karate hain jinamen ack saaranibaddh aakar aur paarshv pahaluon parr neeche kii or vikarn dhaariyan shamil hain.
cobal samooh mool mein jalodh yaa "patthar key himskhalan" key utpaad hoe sakate hain, joe kii asanghatit cobal aur bajari key parinamswarup ack prakaar kaa malba pravaah haye. aise patthar key himskhalan mein, achchi tarah seey goal cobal apane cumm ghoornan gharshan key kaaran sabse door taka jaa sakate hain. jaba jalodh prakriyaon kaa utpaad hotaa haye, tou cobal samooh key matricks mein bajari aur motey rait hotey hain. isake vipareet, pravaah-jamaa samooh key matricks mukhya roop seey mitty hain.