The Long Mountain project in Jamaica

Paul Bourne MSc. (candidate); BSc. (Hons); Dip. Edu.


INTRODUCTION

Topology of Jamaica
"Eastern Jamaica represents extremely steep and rugged topography with the crest of the Blue Mountain Range reaching 2254 m within about 10 km of the coast. Landscape in eastern Jamaica is geologically young (Quaternary). It is seismically most active part of the island and appears to be undergoing geotectonic uplift. Watersheds are relatively small and steep. Rivers flow through steep canyons onto alluvial/debris fans before emptying into the Caribbean Sea. With the exception of alluvial fans, flat areas are rare in the parishes of Portland, St. Thomas, and Upper St. Andrew. Communities have settled on fans and development activities are hindered by a lack of flat land. Landslides are common and are perhaps the most widespread hydro geologic hazard on human timescale causing land degradation thus affecting land productivity. Bedrock structure strongly influences slope stability. Landslides preferentially occur in locations where the direction of dip of bedding in the shale and sandstone sequence daylights in slope faces. Landslides occurred both in the landscape modified for human use as well as on slopes under dense forest cover."

Rafi Ahmad et al (2004) from the Departments of Geography and Geology
Rafi et al went on to state that, "The vulnerability of Jamaica to geohazards is primarily due to inherent physical conditions arising from geologic, tectonic, and geomorphic factors. The island lies within a 200-km wide, seismically active zone of Neogene left-lateral strike-slip deformation that defines the central section of the boundary between the Caribbean and North American plates (Mann et al., 1985)." They continued that, "It is located in the track of north Atlantic hurricanes passing through the Caribbean. The present-day topography on the island has largely resulted from crustal movements during Quaternary (Horsfield, 1974). The highly fractured and deeply weathered and altered bedrock and neotectonics control the landforms and geomorphic processes to a remarkable extent. Slope instability is notable throughout the island. These factors are well known and the resulting vulnerability can be forecast, however, case studies during 1986 to 1995 show that the costs of rehabilitation and reconstruction have increased in the wake of natural disasters (Ahmad, 1995; Carby and Ahmad, 1995)."

Kingston, the capital of island is situated on the Holocene gravel fan of Liguanea at the base of a faulted mountain front. This speaks to a ring of low hills of Tertiary limestones (Long Mountain, Dallas Mountain, and Stony Hill) borders the fan. Overlooking those geographic localities do the Port Royal Mountains (of St. Andrew) comprise Cretaceous to Paleogene rocks of the Wagwater Belt. Rafi et al contended that, "Lead-zinc-copper mineralization occurs at several sites within the Belt. Notable among the industrial rocks and minerals are vast reserves of gypsum and limestones." "According to Mann & Burke (1990), the Wagwater Belt of eastern Jamaica formed as a transverse intra-arc rift and it appears that the uplift and doming of the sediments in the trough is a consequence of compression at a right-stepping bend on the thoroughgoing, left-lateral Enriquillo-Plantain Garden-Swan fault system which forms the southern part of the plate boundary zone." (Rafi et al, 2004).

On Long Mountain, then, is it safe to carry out blasting which will displace rocks of an area which is already on fragile topology? Answer- The openness of the island to geohazards is mainly due to natural physical conditions arising from geologic, tectonic, and geomorphic factors. Jamaica lies within a 200-km wide, seismically active zone of Neogene left-lateral strike-slip deformation that defines the central section of the boundary between the Caribbean and North American plates (Mann et al., 1985). According to Rafi et al, it is located in the track of north Atlantic hurricanes passing through the Caribbean. They concurred that "the present-day topography on the island has largely resulted from crustal movements during Quaternary (Horsfield, 1974). The highly fractured and deeply weathered and altered bedrock and neotectonics control the landforms and geomorphic processes to a remarkable extent. Slope instability is notable throughout the island."

Summary of the environmental profile of Kingston and St.Andrew (KMA)
In the arguments forwarded to this point Long Mountain which is located in Kingston and St. Andrew is known to be within a particular topological position in Jamaica and by extension in the Caribbean. Let us remind you of this fact, the city of Jamaica (Kingston) is located on the Holocene gravel fan of Liguanea to which at its base is a faulted mountain front where a ring of low hills of Tertiary limestones (Long Mountain, Dallas Mountain, and Stony Hill) borders the fan.

Geologists argued that, "Lead-zinc-copper mineralization occurs at several sites within the Belt. Notable among the industrial rocks and minerals are vast reserves of gypsum and limestone." Hence, why the present afoot in the construction of dwellings for humans on Long Mountain? Is the contamination of Long Mountain with buildings a political and economic decision verses an environmental decision within the context of sustainable development?

Management of the Environment

The management and the effective balancing mechanism of the economic, social and environmental factors are not simply a mathematical technique to which the solution is either calculus or any other statistical technique, but it is a continuous drive to harmonize man's needs for survival, self-esteem, self-actualization, warm, a place to residence, the need for wellness and other social facilities while synchronizing those demands with the reality and capacity of the environment with the understanding of not reducing future generations' consumption of the same quality space.

This harmonization of environment in the past (prior to the 1980s) was not done within the understanding of sustainable development but solely economics. In that, man would seek to consume as much of the environment without the comprehension that his/her future is inextricably linked to the environment. With the every expanding Westernization of the Caribbean and moreso Jamaica, there is a growing need for commercial activities, social arrangement, dwellings, and facilities that are continuously demanding more of the environment.


Urbanization is one of the tools of Westernization. This phenomenon results in more and increasingly more of the use of the limited lands to which characterized the Caribbean. On the other hand; Pollution, deforestation, the destruction of wildlife, the watershed and the natural forestry are just a few examples of the rape of the land and by extension reducing the qualities of the land for future consumption by today's man.

Many advocates of urbanization blindly purport that this new phenomenon is modernity and development. As such, their views over the years up early 1990s have been the dominate position believed and utilized by governments in planning. This belief brought about a remarkable and unprecedented depletion of the ozone layer, solid waste problems, pollution - air, land and sea; ecosystems mismanagement, depletion of quality water supply, the increase in respiratory diseases and depletion of much of the environment to which man relies for survival. It is those issues that have resulted in the birth of institutions like Greenpeace and old institutions like the World Bank adopting and instituting measures that governments around the world will need to implement in order to alleviate environment issues.

Old institutions like the United Nation and World banks were not volunteers in the fight against environmental problems but it was a difficult struggle for those organizations to join the team advocating as they are today for sustainable development. Because of the insistence of many environmental watchdogs groups advocacy over the years and their methods in marketing the issue of sustainable development within the reality of the negative environment implications of issues as global warming, climate change, pollution, the depletion of the ozone layer, and the negative consequences of those issues on water and food supply and quality environment for man's consumption; a materialist foundation has been set on the agendas of influential institutions such as the World Bank and the United Nation to address the balance between environment and economics.

Now that the World Bank Grouping of institutions have been involved with this new thrust on their agenda, they have been able to institute policies that are seeing more and increasingly more countries no longer being able to arbitrarily use solely economic costs-benefit analyses in decision making but issue of sustainable development.

While it is true that people have an insatiable appetite for consumption of goods and-or services than demands more of the environment, when an environmental audit is used it must be of materialist value in decision making and not be felt solely political and economic managers. The demand and supply of dwellings close to the urban centres is becoming increasingly more burdensome for political and economic managers in light of sustainable development.

Deforestation, degradation of the watersheds, the removable of natural wildlife and the displacement of rocks are becoming increasingly a reality in the Caribbean experience given the fact of limited land space, so much so that we are seeing more and more blatant rape of the environment.