Page 7 - Guide to the Oceans
P. 7
ONE OCEAN The R,·d Sea was lormed about 50 million years ago, when Africa ,tarted to drill away Imm Arabia. ,·ve111ually b,·camc the Red Sea. Th,· Red Sea is s1ill getting wider at a rate of about 0.8 in (2 cm) per year. In 150 million years.
GROWING OCEANS This sonar image shows the East Pactllc Rise, which is part ol the mid-ocean ridge that nms down the Pactllc Ocean. The ridge marks the line where two tectonic plates arc pulllng apart and where a new area of seabed Is forming between 1hc111. This part of the Pacilic ts slowly gelling wider as a result. Dark blue Indicates the deepest dep
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Occnn currents Hrca1ly Influence dlmmc and weather on lt1nd. London t1ml Moscow should have shnllar cltma1cs bcrnusc they arc rnuHhly the same dlst.111cc away Imm the Equawr - have a similar "latltud,•" (sec map). But London has much mtldcr winters due tu a current c,illcd the Gull Stream. which carries warm wa1cr Imm the Caribbean tu Britain. Moscow. far Inland ;md away from th
CURRENT W BATHER 11,,· E.1nh\ rnntincnt, an· stilt moving and changing today - 1 lu, pmcl'" is called co111inl'lllal drill. Th,· Eanh's strong mn,·r "skin· - is uackrd. likt· t1n cggshl'II. into about 12 largl' and small tn 1, uiic plaic,. • Volcanic lorn·s deep within till' Eanh cause the plates tu , lid,· owr lhl' dl'l·pcr. mm,· liqu
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Tll TIii: lH h\NS Q~EAij E · ARTII, ll(lT<l(,llAl'ltS or TIii' · I· ns ,rn P thr sh.ipr ,,nd positn>n o ·m I rnm 1111 I ' th,11 thr E.irth's l,111d111Jss h.is split and (OIHl' togt YI ) tim,·s. Ahout 250 million yc,,rs ago 1 · " 1 ' n>lltinents Wl'f(' par t 1 . ' When ""'"'""" sp ll up. t it , M 1lll\ll\11\!IIII F u11!', r ii\11,1 ,,, rt
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