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Lethbridge Herald Newspaper Archives

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Lethbridge Herald, The (Newspaper) - September 26, 1974, Lethbridge, Alberta 30 THE LETHBRIDGE HERALD Thursday, September 26, 1974 Ask Andy sends i complete 20- set ot the Ment Mudents Encyclopedia to Mickev Maiguhes age 12 ot Chiton Heights. Fa for his question What exacth is slate' At one time school children used thin slabs ot flat gre> slate instead ol notebooks Novvadavs this interesting rock material mav be used to tile patios and floors and sometimes roofs are tiled with slate The storv of slate is interesting because it goes through several stages of remodeling in the earth s crust Slate is a hard rock} mineral of the earth s crust and the storv of its formation goes back through many millions ot years Most ot our Mate quarries are along the eastern shores Their stories are linked to the formation of the mighty Appalachian mountains Some 300 million vears ago this region was submerged bv shallow seas where muds drained down from the slopes Through the ages fine par tides of various minerals deposited soggy layers below the water At last the eastern side of the continent became involved in a stupendous era ot mountain making First the northern arm of Ap- palachians arose in the New England region After 50 million years or so, the southern arm of Appalachians arose and the mountain barriers permanently shut out the Atlantic Meantime the muddv deposits that formed along the former shores became involv ed in this dramatic chapter of mountain-making As the land rose thev were lifted above the water and became dry lavers ot limestone sandstone and shale Mineral layers of this sort are called sedimen- tary rocks because they were deposited as watery sediments Volcanos erupted added masses of granite and other igneous fire-formed rocks to the growing rnoun lams During the long upheaval some of the original sedimen- and igneous rocks were remodeled completely of lump} limestone were reprocessed into deposits of waxy marble And some of the shales were changed into slates Minerals that have been through dramatic changes of this sort are called metamorphic rocks And slate is a metamorphic form of shale In most mc'tamoiphic rocks the- tianstoimation is bi ought about heat and pressuie In slate the main toite is piessuie with little heat Its small paiticles im lude quartz and mica feld- spar and magnetite Its stieakv gievs and blacks are added bv graphite processed liomcaibon Its reds are iron oxides its greens are added b} a mineral called chlorite Uutmg the slow pressing process all the air and moisture in the original shale are squeezed out and the par- ticles are crushed flatter than tlat This is why slate tends to cleave or split into lavers like tlat rockv pages When the original sediments were deposited different minerals formed colored lavers During the metamorphic process these were changed IP the finished slate the original colors form streaks across not between the rockv pages If the streaks in a slab ot hard grey slate are dark graphite or light calcite chances are it is too fragile tor use as a durable tile material Questions asked by chil- dren of Herald readers should be mailed to Ask Andy, P.O. Box. 765, Huntington Beach, California 92648. (Copyright Chronicle Publishing Co. 1973) Flashback Bv THE CANADIAN PRESS Sept 26, 1974 The Queen Mary first British liner to exceed feet in length was launched 40 v ears ago in 1934 after a royal christening in Glasgow, Scotland The 81 235-ton giant of the seas captured the Atlan- tic blue riband from the French vessel Normandie four years later, crossing the Atlantic at an average speed of 31 7 knots taking 4Vz days In July 1952 the United States liner United States cap- tured the blue riband, making the crossing at 35 59 knots (about 41 miles an hour) in three days 10 hours and 40 minutes 1750 Admiral Colhngwood born 1815 Austria Prussia and Russia formed the Holy Alliance 1918 S S Tampa torpedoed off England 118 dead Goren on Bridge BY CHARLES H GOREV c Tlw Chicjto Tritnat Nt r vulnerable North do.ils NORTH A109 AJ763 h J2 EST KAS F J 7 3 6 2 V8 V Q10S4 47653 AU109 4KJ1095 SOI IH KQX54 9 KM2 84 fh 2 Pass 4 Pass Pass Pass id Kiuhl "1 o partner i heart ruff and if hi had tht KI of diamond5; as well a sci ond heart ruif would dt U at the contract Thus both dec hirers drew threJt t i in r s nint ht iris v m' V 1 !t 11 (premature) in the natural rhvthmic beat of the heart Manv normal people have these without heart disease If thev c ause sv mptoms or occur Irequentlv or with known heart disease then thev can be important otherwise the> are best ignored That is whv vour doctor lold vou to just go on our questions to Dr. Lamb, in care of this new- spaper, P.O. Box 1551, Radio Citv Station, New York, N.Y. 10019 For a copy of Dr. Lamb's booklet on balanced diet, send SO cents to tbe same address and ask for the "Balanced Diet" booklet LI1ABNER KEEP THEY PAYS t-crr OUR MADE. 'I- ALL KlcHT HEARP THE REPORT FROM OUR STATISTICIAN BOTH UITT1NC ANP OUR FIELP1N6 AVERAGES WERE OWN THIS H'EAR YOU ALL uJUAT uJE HAVE TO PO NEXT ON GET A NEW SHORT MBS WITCH (4A9 RAISED HER FEE FOR PRIVING- OUT EVIL SPIRIT' AND SHE WONT EVEN MAKE CASTLE TO 2O GOLD HUMPERDINKS A VISIT I'LL BE SLAP WHEN TMEYl START SOCIALIZED SORCERY HI AND LOIS DOT'S POSTER WDM FIRST PRIZE AND ALL HE GOT WAS A HORRIBLE MENTION! BIMNY THIS CAR'S TH' GREATEST, AUTERMATIG WINDOWS, MATC CUIMATE coNTfsOu, AUTEK- MATIC TRANSMISSION IN FACT EVERYTHIN' 15 INCLUDIN YOUR MONTHLY PAYMENTS' DON'T MIND HIM. HE'S OUR CREDIT MANAGER BLONDIE WHATEVER SELLING, IM NOT NOW THAT TME ICE IS BROKEN WOULD YOU CASE TO TMISK IT OVER ARCHIE VERONICA, THERE'S ANOTHER GIRL HERE WfTH A DRESS EXACTLY LIKE I MEAN, Y HOW CAM YOU CLOSE WHOSE YOUR EYES 7 EYES ARE CLOSED.' DOESN T IT JUST YOUR WHOLE EVENING? HE MISTOOK HER. FOR HAGAR THE HORRIBLE itETLE BAILEY WE GOT PIZZA ANP EfS. AND PIZZA, ANP P32ZA 50AKS? TUM8LEWEEOS PO YOU, HILPESARP HAMHOCKEK, TAKE THJS LOOKMMOUSEJ ;