21. -- You may have to wipe the " Explorer " plate off your geological map . 22. Calfhow Pike, Randerside and High Brow are all shown as dacite on the geological map . 23. Lac's boss, Peter Allen, personally steered the firm's hedging policy and pored over geological maps . 24. Here is a start : geological maps of Ohio. 25. Also, he is credited for providing the first geological map of Styria ( 1835 ). 26. The Brickearth is normally represented on 1 : 50, 000 solid and drift edition geological maps . 27. According to geological map there are two areas of widespread : the northern and southern areas. 28. The term also applies to a line plotted on a geological map to represent a fault. 29. Also there may be geological maps available, with accompanying notes-but they could all be in Spanish. 30. In 1897 he issued a " Geological Map of England and Wales, with Descriptive Notes ".