Location
Brimbank Park (coordinates 37.7340° S, 144.8370° E) is located in the Maribyrnong Valley (hollowed by the Maribyrnong River), near the Melbourne suburb Keilor. It is intersected by the Maribynong River and the M80 highway, which reveals the adaptive nature of the natural environment in a growing urban area. (Parks Victoria, 2013)
Figure 1: Map of Brimbank Park (Google Maps, 2014)
Geology
Brimbank Park consists mainly of sedimentary rock, due to its close proximity to the Maribyrnong River. Along the banks, alluvial deposits and terrace sediments arise from the Quaternary Period (Geological map of Victoria, 1973). Although there is a distinct lack of igneous rock in area, the sediments from primary igneous rock upstream have weathered and been carried downstream onto the river banks. This process has been accelerated due to the water in the ecosystem.
Sedimentary rock from the older Silurian Period is further from the river banks (Geological map of Victoria, 1973). Mudstone, inter-bedded shale and greywacke depositions indicate the Maribyrnong River may have previously taken a different shape, and younger sediments have replaced the older sediments in more recent geological periods.
The third alluvial deposition consists of sand, silt and minor inter-bedded gravel, and again indicates Brimbank Park’s changing geology over time. (Geological map of Victoria, 1973). These deposits, as well as a nearby fault suggest volcanic activity 5-1.6 million years ago, which explains the olivine basalt (fig. 2) deposits which date back to to the Silurian and Tertiary period.
Figure 2: Olivine basalt (Uncyclomedia commons. (2006))
Figure 3: Geology of Brimbank Park (Department of Primary Industries, 2012)
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... from:
http://www.birdsinbackyards.net/species/Malurus-cyaneus
Frogs of Australia. (n.d) Growling Grass Frog. Retrieved from:
http://frogs.org.au/frogs/species/Litoria/raniformis/
Brimbank City Council (2012) Brimbank Biodiversity Strategy 2012-2022 Retrieved:
http://mapshare2.dse.vic.gov.au/output/map30948.pdf acessed 06/04/14
Parks Victoria (2005) Brimbank Park Nature Trail. Retrieved from:
http://parkweb.vic.gov.au/__data/assets/pdf_file/0009/314487/Park-note-Brimbank-Park-nature-trail.pdf
Human Impact
Weekend Notes (2011) Brimbank Park. Retrieved from:
http://www.weekendnotes.com/brimbank-park/
Keilor Historical Society (1990) Retrieved from:
http://home.vicnet.net.au/~khis/keilor_overview.html,
Brimbank City Council (2012) Brimbank Biodiversity Strategy 2012-2022 Retrieved from:
http://mapshare2.dse.vic.gov.au/output/map30948.pdf
The Kimmeridge Clay Formation is the penultimate formation of the onshore British Jurrasic Succession. William Smith was the first to document this distinct formation on his map of 1815, and to name as the Oaktree Soil. In 1817, he gave the name Oaktree Clay for the layers of clay between the “Portland Rock” and “Coral Rag and Pisolite” but in 1816 Webster was the first to describe in details the formation and changed to the name now known as kimmeridge Clay Formation after the English village of Kimmeridge on Dorset’s “Jurassic Coast” a place frequently visited by fossil hunters. (Cox and Gallois, 1981).
The shelf-edge includes carbonate-to-clastic facies transition and tectonic uplift and erosion of the carbonates followed by deposition of the clastics. The Saint Peter Sandstone is a well-sorted, almost pure quartz arenite deposited during a major mid-Ordovician low stand. Clastics spread across an exposed carbonate platform by transportation. This is shown by the well-rounded, frosted texture of the quartz grains.
Yes this feature is the result of erosion and depositional processes however, it is not associated with the current water course. This feature may be the result of a Gilbert type delta that once occupied this area. Gilbert type deltas have three main components; topsets, foresets and bottomsets. Topsets are fluvial sediments (primarily sandur deposits) that were deposited on the subaerial delta surface. Erosive events occurring on the upper forslope can result in downslope channels and chutes. These features are then eroded by either strong currents or by debris flow resulting in these channels and chutes to become filled. Foresets are a combination of sand and gravel facies. The are deposited by gravitational processes on the delta foreslope and the grains tend to become finer and more angular downslope. Bottomsets consist of fine grained silts and clay and are deposited at the foot of the delta front.
The Don Valley Brickwork consists of many different layers of geological deposits, allowing us to observe and have a better understanding of how the sediments we see today are formed. The most bottom layer in the Brickworks are from the Georgian Bay Formation, and consists of grey- shale bedrocks. Fossils are often found in this layer and it is estimated that this deposit of sediments is around 445 million years old. Above the bedrocks is a thin layer of grey clay sand and gavels left behind by the Illinoian Glacier. This layer is called the York Till and occurred around 135,000 years ago. The next layer consists of a sandy deposit called the Don Formation, which is formed by the Sangamonian Interglacial Stage. Many plant and animal fossils are found in this layer due to warmer climate around 120,000 years ago. Above it lies the Scarborough Formation, which consist of clay and sand. This sediment likely occurred 115 - 106,000 years ago. The next layer above is the Poetry Road Formation, and consist of sand and gravel. This layer is likely formed during the early Wisconsin glacial substage around 106- 75,000 years ago. Higher is the Sunnybrook Drift which was formed 60 – 75,000 years ago. And on the surface, is the Halton Till, which was left behind by the final push of the Wisconsin Glacier.
This is a report based on three days of observations and testing in the region known as the Peterborough drumlin field. It will address a variety of regional elements, such as climate, soil, vegetation, hydrology, geomorphology, and geology. A variety of sites located on the Canadian Shield, the zone of thick glacial deposits to the south, and the transition between them will be the focus of the report. It is supplemented with previous research on the region. September 8, 1999, day one of the field study involved an area of largely granite bedrock that is part of the Canadian Shield and is the most northern point of study (see Map 2). September 9, 1999, day two, involved three main areas of study: the Bridgenorth esker (Map 3), Mark S. Burnham Park (Map 4), and the Rice Lake drumlin (Map 6). These sites are in areas of thick glacial deposits. September 10, 1999, day three, involved studying the Warsaw Caves (see Map 5) as a transition zone between Precambrian Shield rock to the north and Paleozoic rock to the south. A general map of the entire study region is provided by Map 1.
of sand and gravel deposits that lay on top of London clay and it is
The purpose of this paper is to explain and highlight different aspects of the Powder River Basin to include paleogeography, stratigraphy, maturation history of organic material, vitrinite reflectance data, sulfur content, both historical and current production data, as well as the environmental impact in the basin.
We don’t often stop to consider the impact that simply living our human lives has on the other species that once called our neighbourhoods their home. The Fraser Valley, “one of the most important and complex ecosystems in the country” (Thom, p. 171), has been dramatically altered to make a more convenient landscape for housing and farming. In this process, critical habitat has been destroyed and many species that were once abundant have disappeared from our area (Cuthbert p. 24). Urbanization is ongoing and is thought to be the most significant threat to the incredible biodiversity found throughout British Columbia, and particularly the population-dense Lower Mainland (Harding, p. 355). Biodiversity, the “complex web that sustains life on this planet” (Austin, et al., p. 5), is vital for our survival as humans (Cuthbert p. 74). Any loss of biodiversity affects the entire ecosystem and all organisms within it (Fetene et al., p. 52). In the quest to house the ever-expanding human population, we must also consider habitat conservation and seek to preserve the rich biodiversity found in the Fraser Valley that supports and enriches our lives.
Stone Mountain rises in sharp contrast to the surrounding flat, rolling landscape creating a geomorphic monadnock. Geologists appear to have consensus of the volcanic origins and underground formation of t...
Urban Regeneration in the London Docklands The London Docklands Development Corporation is located along the River Thames Estuary 2.a) The London Docklands had to close for many reasons. The main reason was the Second World War. The area suffered substantial bomb damage in the Second World War, which lead to the need for a substantial rebuilding programme. In the first 20 years after the Second World War, many buildings came to the end of their usefulness.
Newman, B., 2012. Australian Regolith and Clays Conference. River Murray Salinity Management and Irrigation, pp. 163 - 166.
In Rhoda Halperin’s Practicing Community: Class, Culture, and Power in an Urban Neighborhood, over six years of anthropological research was conducted in the East End community of Cincinnati, Ohio. This book presented how East Enders were wanting to preserve their community as it was subjected to sudden changes, such as urban and economic developments. Halperin included narratives and viewpoints from various East Enders in order to voice the community and their concerns, additionally allowing readers to envision how the community was progressing through the variations of development. In conclusion of reading Practicing Community, I was able to fully understand how topics learned in class correlated with the purpose of the book.
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