Why is it so difficult for
scientists to determine how the Jalisco block is
moving

Answers

Answer 1

Answer:

Extensional faulting observed in southwestern Mexico has been related to the incipient rifting of the Jalisco block from the Mexican mainland since the Pliocene. On the basis of new structural and geophysical data, we propose that (1) the continental boundaries of the Jalisco block are ancient structures reactivated since the Pliocene at a low (<1 mm/yr) rate of deformation, and (2) Pliocene-Quaternary extensional faulting at the edges of Jalisco block is a basement-controlled intraplate deformation related to plate boundary forces rather than to active continental rifting. The Jalisco block boundaries first developed in response to the uplift of the Puerto Vallarta batholith in pre-Neogene time and underwent a complex contractile deformation before the Pliocene. During Pliocene-Quaternary times north-northeast extension reactivated the northern boundary, forming the Tepic-Zacoalco rift, whereas east-southeast extension formed the northern Colima rift. South of the Colima volcano, active extension is found only west of the so-called southern Colima rift and partly reactivates old northeast-trending basement faults. The parallelism between the subducted Rivera-Cocos plate boundary zone and the eastern neotectonic boundary of the Jalisco block supports eastsoutheastward motion of the southern Mexican blocks induced by the differential motion and oblique subduction of the Cocos and Rivera plates. On the other hand, we envisage Pliocene-Quaternary extension along the northern boundary as an upper-plate response to the low convergence rate and the steep subduction angle of the Rivera plate.

Answer 2
Because it just is...

Related Questions

Write a 3 to 4 paragraph essay of how you would convince a logger from illegally cutting down trees? Provide logical reasons to support your argument. Remember these loggers are trying to survive and put food on the table for their families. Include the effect of human need and greed, and include a solution as part of your persuasive essay.
Here's what you need to address: What effect has human need and greed had on the Amazon Rainforest? How is the Amazon Rainforest important to the world?

Answers

Answer:

In the past years, nature has been rapidly deteriorating due to human actions. One of the most prominent issues is deforestation. We as humans depend on trees to provide lumber, paper, and much more but at the same time trees also provide us with oxygen, prevent soil erosion, and provide a habitat for many species of animals.

The Amazon Rainforest is the home to billions of organisms and thousands of species. As we continue to destroy the habitat of these species, we are causing many of them to become endangered and even extinct. Though the death of a few birds or trees may not seem significant, everything in our planet is connected in some way. The extinction of one species can cause a major gap in the food web, impacting the entire ecosystem. For example, deforesting the habitat of birds will cause them to more easily be captured by their predators. The predator population will then grow exponentially, but because the bird population is decreasing the predator population will eventually die out. Since now there are no predators at all in the area for pests such as mice, these pests can no infest agricultural farms killing crops. Without these crops we humans cannot survive, so in the end us humans will be the ones impacted by our own actions. This example may seem like an exaggerated example to many, but when you take a look back at the major famines throughout history you will be able to see the trend.

It is understandable that many people depend on logging to make a living for themselves and their families. but other selfish people just want the best for themselves. In order to combat these two problems we must persuade governments to put harsher laws in place for those who illegally damage environment for their own benefits, and provide support to those whose jobs may be at risk due to environmental protection regulations. If the greedy are punished for their actions, it will keep them from deforesting more trees. As for the loggers, if the government can provide basic or vocational education to those people so they have the ability to work in other fields (can be related to logging like environmental protection or something different that won't harm the environment), then it will allow the people affected to smoothly transition to another style of living that won't harm the environment.

Explanation:

You first need to provide some scientific and specific evidence for what logging is doing to the environment for some credibility. Afterwards you need to explain why people should care about those impacts. Then in the end make sure to state the stakeholders and provide a few examples of how they can benefit from slowing down deforestation.

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