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Padirac Chasm

The Padirac Chasm or Gouffre de Padirac is a cave located near Gramat, in the Lot département, in France.

Features

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The chasm itself is 99m around its rim. Visitors descend approximately 75m before entering a cave system which is partly negotiated by boat. This cave system is regarded as "one of the most extraordinary natural phenomena of the Massif Central".[1]

History

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Much of the credit for opening the cave system is owed to Guy de Lavaur (1903-86), who came to Padirac in 1938 and managed to penetrate 15km of the cave system.

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Le Gouffre de Padirac

References

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  1. ^ Michelin. Green Guide: France. 2000. ISBN 2-06-000069-6


Table 1: Percentage Additions of Alloying Elements to High Speed Steel Grades.
Grade C Cr Mo W V Co
T-1 0.75 - - 18.0 1.1 -
M-2 0.95 4.2 5.0 6.0 2.0 -
M-7 1.00 3.8 8.7 1.6 2.0 -
M-42 1.10 3.8 9.5 1.5 1.2 8.0