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Course profile

Geochemistry (ERTH2205)

Study period
Sem 2 2024
Location
St Lucia
Attendance mode
In Person

Course overview

Study period
Semester 2, 2024 (22/07/2024 - 18/11/2024)
Study level
Undergraduate
Location
St Lucia
Attendance mode
In Person
Units
2
Administrative campus
St Lucia
Coordinating unit
The Environment School

This course introduces 2nd year students to the broad field of geochemistry that underpins much of the modern Earth Sciences. Geochemistry is critical to our understanding of low-temperature processes at Earth’s surface, high temperature processes deep within the Earth and the cosmochemical processes responsible for the birth of our solar system. The course emphasises the use of trace elements and isotopes as tools to understand Earth’s evolution placing the emphasis on ‘geo’ rather than ‘chemistry’. In the first part of the course, you will learn about the origin of chemical elements, the formation of the solar system and the differentiation of the Earth including the development of continental crust. The course then examines surface processes that have made our planet habitable including weathering of continental crust and its linkages to the carbon cycle and climate. Finally we examine how basaltic lavas probe the mantle and subduction of oceanic crust recycles chemical elements from the Earth’s surface reservoirs back into the mantle. During the course you will gain an understanding of how different trace elements and isotopes are used to decipher the nature and timing of a huge range of processes in Earth Science and you will gain an appreciation of how to interpret published geochemical data as well as its limitations.

Course requirements

Prerequisites

You'll need to complete the following courses before enrolling in this one:

ERTH1000 and ERTH1005 (ERTH2005 prior to 2024)

Incompatible

You can't enrol in this course if you've already completed the following:

ERTH3205

Course contact

Course coordinator

Associate Professor Mark Kendrick

Please make queries during scheduled contact times in the first instance. In addition, I will be available in my office 3-4 pm most Fridays.

Course staff

Lecturer

Timetable

The timetable for this course is available on the UQ Public Timetable.

Additional timetable information

Check your online timetable regularly

Aims and outcomes

ERTH2205 is aimed at introducing 2nd year students to the broad field of geochemistry. Geochemistry underpins much of the modern Earth Sciences and this course is strongly recommended for students continuing to 3rd year level Earth Science courses and the Earth Science Major. It is intended to be of broad interest to other physical scientists, environmental scientists and archaeologists. The course aims to provide knowledge of the processes controlling Earth's chemical evolution, and how these can be deciphered from variations between major/trace element and isotopic composition of different chemical reservoirs within the Earth. The course introduces analytical techniques for elemental and isotope measurement and applications of geochemistry to geology and environmental sciences including geochronology and interpretation of trace element and isotopic data.

Learning outcomes

After successfully completing this course you should be able to:

LO1.

Understand basic processes controlling the abundances and distribution of elements (and isotopes) on Earth and in the solar system.

LO2.

Relate the chemical properties of individual elements to their behaviour in a range of geological processes.

LO3.

Explain how four major classes of geochemical tool (e.g. major and trace elements, stable and radiogenic isotopes) can be used to study different aspects of the Earth.

LO4.

Use trace elements and isotopes as tracers of geological processes.

LO5.

Use radiogenic isotopes for determining the age of a mineral or rock formation.

LO6.

Students will be required to read a variety of geochemical diagrams.

LO7.

Students will be familiar with methods for collection and analysis of geochemical data.

Assessment

Assessment summary

Category Assessment task Weight Due date
Participation/ Student contribution, Practical/ Demonstration Practical exercises (most weeks)
45% formative

The due date of practical assessments will be posted with the task, typically one week later.

Participation/ Student contribution, Performance Group presentation / paper discussion
  • Team or group-based
15%
Examination Final Exam
  • Hurdle
  • In-person
40%

End of Semester Exam Period

2/11/2024 - 16/11/2024

A hurdle is an assessment requirement that must be satisfied in order to receive a specific grade for the course. Check the assessment details for more information about hurdle requirements.

Assessment details

Practical exercises (most weeks)

Mode
Written
Category
Participation/ Student contribution, Practical/ Demonstration
Weight
45% formative
Due date

The due date of practical assessments will be posted with the task, typically one week later.

Other conditions
Student specific.

See the conditions definitions

Learning outcomes
L01, L02, L03, L04, L05, L06, L07

Task description

Variable including question and answer, guided calculations, plotting exercises and quizzes.

Submission guidelines

ONLINE SUBMISSION BY TURNITIN ONLY by the due date. No hard copy or assignment coversheets required.

Deferral or extension

You may be able to apply for an extension.

See ADDITIONAL ASSESSMENT INFORMATION for the extension or deferrable availability notes relating to this assessment item.

Late submission

A penalty of 10% of the maximum possible mark will be deducted per 24 hours from time submission is due for up to 7 days. After 7 days, you will receive a mark of 0.

See ADDITIONAL ASSESSMENT INFORMATION for the late submission guidelines relating to this assessment item.

Group presentation / paper discussion

  • Team or group-based
Mode
Oral
Category
Participation/ Student contribution, Performance
Weight
15%
Learning outcomes
L01, L02, L03, L04, L05, L06, L07

Task description

Teams of ~4 people will read and summarise a selected short format scientific paper. Class members in the audience will participate in discussion of the paper. Marks will be assigned for the group presentation AND participation in classroom discussions of all paper discussions through the semester.

Submission guidelines

Deferral or extension

You cannot defer or apply for an extension for this assessment.

Participation on the nominated date is required.

Final Exam

  • Hurdle
  • In-person
Mode
Written
Category
Examination
Weight
40%
Due date

End of Semester Exam Period

2/11/2024 - 16/11/2024

Other conditions
Student specific, Time limited.

See the conditions definitions

Learning outcomes
L01, L02, L03, L04, L05, L06, L07

Hurdle requirements

50%

Exam details

Planning time 10 minutes
Duration 120 minutes
Calculator options

Any calculator permitted

Open/closed book Closed Book examination - specified written materials permitted
Materials

One A4 sheet of handwritten notes, double sided, is permitted

Exam platform Paper based
Invigilation

Invigilated in person

Submission guidelines

Deferral or extension

You may be able to defer this exam.

Course grading

Full criteria for each grade is available in the Assessment Procedure.

Grade Description
1 (Low Fail)

Absence of evidence of achievement of course learning outcomes.

Course grade description: Work of very poor quality, showing minimal understanding of subject matter. The minimum percentage required for this grade is 0%.

2 (Fail)

Minimal evidence of achievement of course learning outcomes.

Course grade description: Work of very poor quality, very little understanding of subject matter. The minimum percentage required for this grade is: 30%.

3 (Marginal Fail)

Demonstrated evidence of developing achievement of course learning outcomes

Course grade description: Falls short of satisfying all basic requirements for a pass. The minimum percentage required for this grade is: 45%

4 (Pass)

Demonstrated evidence of functional achievement of course learning outcomes.

Course grade description: Work of fair quality, demonstrating a basic understanding of most aspects of subject matter and a modest appreciation of issues covered in lectures and practical components, but serious deficiencies in some areas. Fair to good skills to and ability to plan experiments and interpret experimental results. The minimum percentage required for this grade is: 50%

5 (Credit)

Demonstrated evidence of proficient achievement of course learning outcomes.

Course grade description: Work of good quality, demonstrating a good understanding of most subject matter but with some inadequacies; good skills and ability to plan experiments and interpret experimental results. The minimum percentage required for this grade is: 65%

6 (Distinction)

Demonstrated evidence of advanced achievement of course learning outcomes.

Course grade description: Work of very good quality, demonstrating a strong understanding of most subject matter but with some inadequacies; good skills and ability to plan experiments and interpret experimental results. The minimum percentage required for this grade is: 75%

7 (High Distinction)

Demonstrated evidence of exceptional achievement of course learning outcomes.

Course grade description: Work of exceptional quality, demonstrating deep understanding of most subject matter but with some inadequacies; good skills and ability to plan experiments and interpret experimental results. The minimum percentage required for this grade is: 85%

Additional course grading information

Assessment Hurdle: In order to receive a passing grade, students must obtain a minimum of 50% in the final exam.

Supplementary assessment

Supplementary assessment is available for this course.

Additional assessment information

Late Submission

You are required to submit assessable items on time. If you fail to meet the submission deadline for any assessment item, then 10% of the available marks (assessment marked from value) will be deducted as a late penalty for every day (or part day) late after the due date. For example, if you submit your assignment 1 hour late you will be penalised 10%; if your assignment is 24.5 hours late you will be penalised 20% (because it is late by one 24-hour period plus part of another 24-hour period). 10% will be deducted per day for up to 7 calendar days, at which point your submission will receive a mark of zero (0) unless an extension has been approved.

Please note that in most instances one or more hurdles will apply to your assessment item so you will need to submit it in order to fulfil the requirements of the course regardless of how late it is and the mark you are likely to be awarded.

A maximum of two applications may be submitted for any one assessment item unless exceptional circumstances can be demonstrated.

Applications for Extensions

Information on applying for an extension can be found here - my.UQ Applying for an extension

Extension applications must be received by the assessment due date and time.

If you are unable to provide documentation to support your application by the due date and time you must still submit your application on time and attach a Word document outlining why you cannot provide the documentation and upload the documentation to the portal within 24 hours.

Please note: When an extension request has been submitted and is pending, students are expected to continue to work on the assessment item, with the aim of submitting the assessment item by the requested due date and time.

If you have been ill or unable to attend class for more than 14 days, we advise you to carefully consider whether you are capable of successfully completing your courses this semester. You might be eligible to withdraw without academic penalty. We strongly recommend you seek advice from the Faculty that administers your program.

Extensions with Student Access Plans (SAP)

For extensions up to 7 days, your SAP is all that is required as documentation to support your application. However, extension requests longer than 7 days (for any one assessment item) will require the submission of additional supporting documentation e.g., a medical certificate. A maximum of two applications may be submitted for any one assessment item, unless exceptional circumstances can be demonstrated. All extension requests must be received by the assessment due date and time.

Learning resources

You'll need the following resources to successfully complete the course. We've indicated below if you need a personal copy of the reading materials or your own item.

Library resources

Find the required and recommended resources for this course on the UQ Library website.

Learning activities

The learning activities for this course are outlined below. Learn more about the learning outcomes that apply to this course.

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Learning period Activity type Topic
Week 1

(22 Jul - 28 Jul)

General contact hours

Elements of the periodic table - the life cycle of stars and the origin of the elements

Learning outcomes: L01, L06, L07

Multiple weeks

From Week 2 To Week 4
(29 Jul - 18 Aug)

General contact hours

The origin of planets, the Earth and Moon

Learning outcomes: L01, L02, L03, L04, L06, L07

Week 2

(29 Jul - 04 Aug)

General contact hours

Chart of nuclides and isotopes - the birth of the solar system and meteorites

Learning outcomes: L01, L03, L06, L07

Multiple weeks

From Week 4 To Week 6
(12 Aug - 01 Sep)

General contact hours

Differentiation of the crust and mantle and geochronology

Learning outcomes: L02, L03, L04, L05, L06, L07

Multiple weeks

From Week 5 To Week 7
(19 Aug - 08 Sep)

General contact hours

Differentiation of the crust and mantle and radiogenic isotopes

Learning outcomes: L02, L03, L04, L05, L06, L07

Multiple weeks

From Week 8 To Week 9
(09 Sep - 22 Sep)

General contact hours

Planetary atmospheres, chemical weathering seawater and the CO2 cycle

Learning outcomes: L02, L04, L06, L07

Multiple weeks

From Week 10 To Week 11
(30 Sep - 13 Oct)

General contact hours

Basalt geochemistry, mantle plumes and subduction

Learning outcomes: L02, L04, L06, L07

Week 12

(14 Oct - 20 Oct)

General contact hours

Applying geochemistry to understand an ore deposit

Learning outcomes: L04, L06, L07

Week 13

(21 Oct - 27 Oct)

General contact hours

Revision

Learning outcomes: L01, L02, L03, L04, L05, L06, L07

Policies and procedures

University policies and procedures apply to all aspects of student life. As a UQ student, you must comply with University-wide and program-specific requirements, including the:

Learn more about UQ policies on my.UQ and the Policy and Procedure Library.