OSCA occupation

OSCA 244531: Geologist

Studies the composition, structure and other physical attributes of the Earth or other planetary bodies to increase scientific knowledge and to develop practical applications in fields such as mineral exploitation, civil engineering, space exploration, environmental protection, and rehabilitation of land after mining. This record sits in Geoscientists and Hydrologists. Related ANZSIC industry links are included for faster classification cross-checking. Skill level 1 is attached to this occupation record.

Should you use OSCA or ANZSCO?

OSCA 2024 is the current Australian occupation classification for storing, organising and reporting occupation information. Use this OSCA record for current Australian statistical and analytical classification work.

Some migration and administrative programs still specify ANZSCO 2022. Check the exact system named by the agency or form rather than replacing the code automatically.

Check the current ABS guidance on OSCA and ANZSCO use

Official ANZSCO correspondence

Role overview

Studies the composition, structure and other physical attributes of the Earth or other planetary bodies to increase scientific knowledge and to develop practical applications in fields such as mineral exploitation, civil engineering, space exploration, environmental protection, and rehabilitation of land after mining.

Use this page to confirm the official title, the parent unit group, the task list and the related ANZSIC industry context before using the occupation in classification, reporting or migration-adjacent workflows.

Occupation facts

Skill level
1
Major group
2 Professionals
Sub-major group
24 Design, Engineering and Science Professionals
Minor group
244 Natural and Physical Science Professionals
Unit group
2445 Geoscientists and Hydrologists

Tasks

  • Studies physical attributes of the surface and subsurface of the Earth or other planetary bodies
  • Studies the different chemical and physical processes involved in the evolution of the Earth or other planetary bodies
  • Collects Earth or planetary materials, and analyses their composition, structure and other physical properties
  • Studies and analyses the properties of reservoirs and deposits of resources such as oil, gas or minerals, to estimate their volumes and potential for extraction
  • Estimates how rocks, fossils and other geological materials formed, and infers their age and the conditions in which they formed
  • Builds an understanding of the evolution of the Earth or other planetary bodies and how it may impact upon people
  • Studies and monitors the effects of anthropogenic processes such as resource extraction on Earth or other planetary bodies

Skill level guidance

Skill level helps place the occupation inside the ABS hierarchy. Use it as a classification cue, then check the actual task list and occupational context before making a decision for HR, visa or reporting work.

How to use this occupation page

Start with the official OSCA title and task list. Then confirm the parent unit group and compare the related occupations on this page if the job title is broad, overlapping or used differently across employers.

The ANZSIC links are there to help when the same occupation appears across several industries and you need the business-side classification as well.

Compare before choosing

Compare OSCA 244531 with related occupations

Compare roles in the same OSCA unit group by their official definition, skill level, tasks and recognised alternative titles.

Comparison pointCurrent code244531 Geologist244532 Geophysicist244533 Hydrologist
Official role definitionStudies the composition, structure and other physical attributes of the Earth or other planetary bodies to increase scientific knowledge and to develop practical applications in fields such as mineral exploitation, civil engineering, space exploration, environmental protection, and rehabilitation of land after mining.Studies the composition, structure and other physical attributes of the Earth or other planetary bodies, locates materials such as minerals, petroleum and ground water, and detects, monitors and forecasts seismic, magnetic, electrical, geothermal and oceanographic activity.Monitors, measures, analyses, models, describes and quantifies the Earth's underground and surface water systems, and their interactions with the water cycle, including human use and management of water resources.
Skill levelSkill Level 1Skill Level 1Skill Level 1
Key tasks
  • Studies physical attributes of the surface and subsurface of the Earth or other planetary bodies
  • Studies the different chemical and physical processes involved in the evolution of the Earth or other planetary bodies
  • Collects Earth or planetary materials, and analyses their composition, structure and other physical properties
  • Studies and analyses the properties of reservoirs and deposits of resources such as oil, gas or minerals, to estimate their volumes and potential for extraction
  • Studies, measures and analyses seismic, gravitational, electrical, thermal and magnetic forces, and other physical attributes of the Earth or other planetary bodies
  • Designs and improves methods and procedures for geophysical measurement, data collection and data processing
  • Plans, analyses and assesses geophysical surveys to assist in locating and understanding water, petroleum and other mineral-bearing sources
  • Studies the internal structure of the Earth or other planetary bodies to understand their composition, and predict volcanic and tectonic activity and their associated risks
  • Collects, analyses and interprets groundwater or surface water data
  • Studies the distribution, and physical and chemical properties of surface water and groundwater
  • Identifies the location of groundwater reservoirs and other water bodies, and assists in their exploration
  • Studies the quality of water, and develops methods to ensure water is safe for human consumption or other applications

Comparison uses occupation definitions, skill levels, tasks and title variants from the ABS OSCA data files.

Compliance risk score

4 of 4 factors passing

10 / 10
Verified official source
- ABS OSCA occupation record present
Previous edition migration
- OSCA to ANZSCO correspondence attached
Complete hierarchy
- Major, sub-major, minor and unit group links are present
Legacy crosswalk
- Legacy ANZSCO correspondence attached

How we calculate this score →

In this section

Frequently asked questions

What does OSCA 244531 do?

Geologist is the current ABS occupation record used to describe a specific occupation. It sits in the OSCA hierarchy and carries skill-level context plus related titles and tasks.

How should I read the skill level?

The skill level tells you the educational or training depth that the ABS associates with the occupation. It is a classification signal, not a salary band or a qualification checklist on its own.

Why is industry context shown on an occupation page?

Industry context helps when the title is common or ambiguous. It shows where the occupation is typically employed so you can compare it with the right ANZSIC family.

Source and trust

Official source
ABS OSCA 2024 release and correspondence tables
Last reviewed
2026-04-17

This site is an independent reference resource. It is not affiliated with, endorsed by, or connected to the ABS, ATO or any Australian Government agency.

Please verify critical classification decisions with the official authority before using them for tax, payroll, licensing, immigration or compliance work.

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