Ong Min

13 Questions 7 Answers 0 Followers

Questions related from Ong Min

Why are QAS anomaly distribution following the survey lines trend?

Dear all, I am doing this marine magnetic survey at a jetty/ barge, where the seabed is scattered with various dumped materials (proven from side scan sonar mosaic). After producing the QAS grid,...

18 November 2024 6,665 1 View

How to carry out Diurnal Correction in Oasis Montaj?

Dear all, Good day to you. I performed a magnetic surveyof an area in Pahang and currently doing diurnal correction using GemLink 5. I find that GemLink 5.3 is a good tool when we have less data,...

17 May 2023 2,853 1 View

Could anyone detects fault zone in this fence diagram?

Dear everyone, I recently interpreting the ERT data of an iron mine. The orange colour zone are predicted to be hematite rich zone (based on the resistivity and chargeability values). The type of...

17 April 2023 8,630 1 View

Why does the IP pseudosection goes wrong when the RMS of resistivity pseudosection is <10% ???

Dear Everyone, Good day to you. I am processing some ERT data to look for potential mine. The origin RMS is >50% and I filtered the data using "exterminate bad data points" and edit the "RMS...

14 March 2023 4,024 5 View

Why some of the models have blurry profile while some are clear?

Dear everyone, The images below are ERT resistivity pseudosections. Please look at the red circled part. I realized some of the models have blurry or has very limited information (as the L06),...

13 March 2023 234 6 View

How to identify the most accurate model produce when using the same data?

Dear everyone， I just started to learn ERT data processing and am confronting a problem: We are using the same data. The model that I produce is different from what my colleage produced. (Results...

09 March 2023 6,930 5 View

Why does the display in RES2DINV being cut into half?

Dear everyone, I am just started in the geophysics field and trying to familiarize the RES2DINV software. However, the model displaying in the software are all cut into half. Is there any way to...

08 March 2023 1,658 3 View

Is it possible to determine the mineral deposition type based on the nearby mineral depositional type?

I wanted to determine the mineral depositional type at the area marked with green (Maran, Pahang - Central Belt of Peninsular Malaysia). The regional geology study shows the mineral deposition of...

24 February 2023 8,324 7 View

Why does magnetic survey in gold exploration needs supports of others geophysics survey method?

I found most of the papers used magnetic survey (airborne or ground) to explore new gold mine. However, almost all papers uses additional geophysics method (IP, SP, Conductivity, resistivity, EM...

20 February 2023 561 7 View

What are the guidelines regarding slope and surface design use in Singapore?

Hi everyone, I would like to know what are guidelines/ manuals (regarding slope and surface design, drainage system design) the Singapore government refers to? Are they open source and where...

09 March 2022 5,952 4 View

How to read a Plaxis Displacement Profile correctly?

I recently learnt how to use Plaxis for my thesis, however I do not know how to interpret the result correctly. The displacement profile is showing that the maximum displacement is 47.54 x 10^6...

01 January 1970 4,916 1 View

Which software is recommended to produce sediment logs?

Hi everyone, my senior recently doing sediment logging. Her SV said that sedlog produce an ugly graphic and wanted a nice log graphic as below one. Can anyone tell me which software can produce...

01 January 1970 1,209 3 View

May I know what is this known as

A karst feature found in Gua Kajang, Lenggong Geopark Malaysia. I am really curious what is this call as since it is not miniature pond.

01 January 1970 333 6 View