APPLIED GEOPHYSICS PLEASE DO NOT COPY AND PASTE CHEGG Q&A ANSWER AND USE IT AS T

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APPLIED GEOPHYSICS

PLEASE DO NOT COPY AND PASTE CHEGG Q&A ANSWER AND USE IT AS THE ASWER FOR BELOW BECAUSE ITS WRONG.

PLEASE PROVIDE DETAILED SOLUTION FOR BELOW QUESTIONS.THANK YOU

Which cross section(s) would give a time-distance plot like B? Which cross section(s) would give a time-distance plot like C? Which cross section(s) would give a time-distance plot like D? Which cross section(s) would give a time-distance plot like E? Which cross section(s) would give a time-distance plot like F? Which cross section(s) would give a time-distance plot like B?

Explanation / Answer

the reciprocal of the gradient of the trvael time curve no longer represents the refractor velocity but a quantity is known as the apparent velocity which higher the refractor velocity when recording along a profile line in the up dip direction from the shot point and lower when the downdip this question

1) ans; yes ,travel time curves for head wave arrivals from a dipping refractor in the forward and reverse direction along a refraction profile line,its a dipping layer case with planer interface,in dipping reflecor or refractor crossection is 11 (800 and 1600)

2) yes ,travel time curves for head wave arrivals from a dipping refractor in the forward and reverse along a refraction profile line,above quetstion and this questions are nearly same updip,down di cross section is 11 and 6 condition is V2>V1,V2<V1

3) time distnce plot D is three layer rection survey,first layer v1 ,v2. and v3. this quesion ans is cross section is 2 and 7 (500,900 & 2000) because thats graph Layer values V1, V2>V1 ,V3>V2 .same as above exaplanation all questions.its a reverse shooting and forward shooting (Layer values V1, V2>V1 ,V3>V2) 7 is v2>V1.

4) yes,this only forward shooting question because you sea graph values increase to decrease ok its a three layer curve same as above exaplantion forwrad shooting Layer values V1, V2>V1 ,V3>V2 this reson to your graph then comes,cross section is a 2 (500,900 and 2000)

5) yes but v3 line not touches the v2 , but v1 and v2 crosses the point v1>v2,but v2<<v3 when cross section points is 5 (500,1000,1500)..the reciprocal of the gradient of the trvael time curve no longer represents the refractor velocity but a quntity is known as the apparent velocity which higher the refractor velocity when recording along a profile line in the up dip direction from the shot point and lower when the downdip this question.

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