## Records of the Geological Survey of India, Volume 120, Parts 2-81867- includes the "Annual report of the Geological survey of India". |

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Results 1-3 of 21

Page 65

( 18 ) Gravity

determined after putting X = 0 in equation ( 17 ) . Therefore , 1 a Ag ( 0 ) AGP al 1

tan " / -1 ] ........... ( 19 ) -1 Here t a - b and b < a If b = 0 then t = a and equation ( 17

) ...

( 18 ) Gravity

**effect**right over the centre of spherical crescentic lamina can bedetermined after putting X = 0 in equation ( 17 ) . Therefore , 1 a Ag ( 0 ) AGP al 1

tan " / -1 ] ........... ( 19 ) -1 Here t a - b and b < a If b = 0 then t = a and equation ( 17

) ...

Page 67

3072 50/4 6/4 0/2 30/4 50/4 30/2 C MGP - 21 DATUM +180 MGP - 60 MGP - 27

MGP - 3G MGP - 44 DATUM U U UU U U C -20 JU U U Scale 0 100 INDEX 200

m Soil UU Tuff Barytes Observed gravity

3072 50/4 6/4 0/2 30/4 50/4 30/2 C MGP - 21 DATUM +180 MGP - 60 MGP - 27

MGP - 3G MGP - 44 DATUM U U UU U U C -20 JU U U Scale 0 100 INDEX 200

m Soil UU Tuff Barytes Observed gravity

**effect**o Borehole • Borehole projected ...Page 107

For optimum distance of influence of a line of sampling , such as drivage or raise /

winze in mine , it is safe to assume the

to 150 ft , mean of which is 135 ft or about 44 m . Thus any block with lesser ...

For optimum distance of influence of a line of sampling , such as drivage or raise /

winze in mine , it is safe to assume the

**effect**over an enveloping distance of 120to 150 ft , mean of which is 135 ft or about 44 m . Thus any block with lesser ...

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### Contents

On the occurrence of Thalassinoides burrows from Lameta | 1 |

Stratigraphy and structure of Delhi Supergroup of rocks | 12 |

Structures in Singhbhum shear zone at and around | 27 |

Copyright | |

7 other sections not shown

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### Common terms and phrases

anhydrite associated average axial planes bands Barotiya base basin beds belt Bhim Group block bodies boreholes burrows central channel chert Chitradurga clay deformation Delhi Delhi Supergroup delta deposit depth detailed developed Devgarh direction district drilling east eastern effect environment estimate evaporites exploration field folds formation Geol Geological geometry gold grade granite gravity ground halite Haryana hinge India indicate inlier iron laterite limb lineation major metamorphism mineral mineralisation mining minor Nagaur nature observed occur origin parallel pattern phase of folding plain plunge pre-Delhi present quartz Rajasthan range Reef regional represents reserve resulted rocks samples sand scale schist sediments seismic refraction Sendra Group sequence shear shear zone stage strike structures sulphide surface Surv surveys Table tectonic thickness tion trend unit values volcanics western zone