Method for measuring stone forest forming age and inverting river forming time

Method for measuring stone forest forming age and inverting river forming time

  • CN 106,153,710 B
  • Filed: 07/07/2016
  • Issued: 09/18/2020
  • Est. Priority Date: 07/07/2016
  • Status: Active Grant
First Claim
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1. A method for measuring the age of forest formation and inverting the time of river formation comprises the following steps:

  • step 1, selecting a river reach A to be detected and a stone pillar B;

    step 2, determining sampling points on the stone pillar B, sampling at equal intervals in different elevations, starting from the bottom of the stone pillar, taking one sampling point every 10cm, and obtaining a last section △

    h from the uppermost end of the stone pillarx<

    10cm and △

    hx>

    Setting a sampling point if the length is =3 cm;

    sampling point is h0

    h1

    h2

    h3



    hx

    Step 3, collecting samples of each sampling point;

    when the samples of each sampling point are collected in the step 3, drilling surface stone columns for 1cm and then sampling;

    step 4, determining the age of the sample at each sampling point;

    step 5, obtaining stone pillar forming time according to the age measured by each sampling point;

    step 6, obtaining the time from the beginning of the river to the formation of the river according to the formation time of the stone forest;

    step 5 the method for obtaining the stone pillar forming time according to the age measured by each sampling point comprises the following steps;

    step 5.1, △

    h is obtained according to the data of each section of elevation1=h1-h0



    h2=h2-h1



    h3=h3-h2





    hx= hx-hx -1

    Step 5.2, the time period measured by sampling at different elevations is as follows;

    h is0Is t0

    h1Is t1

    h2Is t2

    h3Is t3

    hxIs tx

    Step 5.3, calculating corresponding time of different elevation sections, △

    t1=t1-t0



    t2= t2- t1



    t3= t3- t2





    tx= tx- tx-1

    Step 5.4, when the forming age delta t of one or more sections of stone pillars is less than 5 years, judging that the emergency happens at the moment;

    step 5.5, when the forming age delta t of each section of stone pillar is less than 5 years, the forming time of the stone pillar is the forming time of a river;

    and 5.6, when the forming age delta t of each section of the stone pillar is more than 5 years, the age of the stone pillar is the time from the beginning of the river to the formation of the river.

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